Home / 88,649.04-122,298.12-56,807.76

Finding the Fourth Proportional to 88,649.04, 122,298.12 and 56,807.76

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Solution

The fourth proportional to 88,649.04, 122,298.12 and 56,807.76 is: 78,370.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,649.04 : 122,298.12 = 56,807.76 : x
  2. Step 2: Convert to fraction form
    88,649.04/122,298.12 = 56,807.76/x
  3. Step 3: Cross multiply
    88,649.04x = 122,298.12 × 56,807.76
  4. Step 4: Simplify right side
    88,649.04x = 6,947,482,249.41
  5. Step 5: Solve for x
    x = 6,947,482,249.41/88,649.04
  6. Step 6: Final answer
    x = 78,370.64

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Double scale
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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.