Home / 88,155.45-121,653.27-47,870.76

Finding the Fourth Proportional to 88,155.45, 121,653.27 and 47,870.76

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Solution

The fourth proportional to 88,155.45, 121,653.27 and 47,870.76 is: 66,060.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,155.45 : 121,653.27 = 47,870.76 : x
  2. Step 2: Convert to fraction form
    88,155.45/121,653.27 = 47,870.76/x
  3. Step 3: Cross multiply
    88,155.45x = 121,653.27 × 47,870.76
  4. Step 4: Simplify right side
    88,155.45x = 5,823,634,491.39
  5. Step 5: Solve for x
    x = 5,823,634,491.39/88,155.45
  6. Step 6: Final answer
    x = 66,060.97

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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.