Home / 88,018.92-121,465.44-47,732.76

Finding the Fourth Proportional to 88,018.92, 121,465.44 and 47,732.76

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Solution

The fourth proportional to 88,018.92, 121,465.44 and 47,732.76 is: 65,870.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,018.92 : 121,465.44 = 47,732.76 : x
  2. Step 2: Convert to fraction form
    88,018.92/121,465.44 = 47,732.76/x
  3. Step 3: Cross multiply
    88,018.92x = 121,465.44 × 47,732.76
  4. Step 4: Simplify right side
    88,018.92x = 5,797,880,695.81
  5. Step 5: Solve for x
    x = 5,797,880,695.81/88,018.92
  6. Step 6: Final answer
    x = 65,870.85

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.