Home / 77,257.92-115,624.32-59,805.60

Finding the Fourth Proportional to 77,257.92, 115,624.32 and 59,805.60

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Solution

The fourth proportional to 77,257.92, 115,624.32 and 59,805.60 is: 89,505.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,257.92 : 115,624.32 = 59,805.60 : x
  2. Step 2: Convert to fraction form
    77,257.92/115,624.32 = 59,805.60/x
  3. Step 3: Cross multiply
    77,257.92x = 115,624.32 × 59,805.60
  4. Step 4: Simplify right side
    77,257.92x = 6,914,981,832.19
  5. Step 5: Solve for x
    x = 6,914,981,832.19/77,257.92
  6. Step 6: Final answer
    x = 89,505.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.