Home / 77,129.32-115,694.94-24,538.60

Finding the Fourth Proportional to 77,129.32, 115,694.94 and 24,538.60

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Solution

The fourth proportional to 77,129.32, 115,694.94 and 24,538.60 is: 36,808.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,129.32 : 115,694.94 = 24,538.60 : x
  2. Step 2: Convert to fraction form
    77,129.32/115,694.94 = 24,538.60/x
  3. Step 3: Cross multiply
    77,129.32x = 115,694.94 × 24,538.60
  4. Step 4: Simplify right side
    77,129.32x = 2,838,991,854.68
  5. Step 5: Solve for x
    x = 2,838,991,854.68/77,129.32
  6. Step 6: Final answer
    x = 36,808.21

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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.