Home / 77,151.43-115,634.67-39,729.16

Finding the Fourth Proportional to 77,151.43, 115,634.67 and 39,729.16

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Solution

The fourth proportional to 77,151.43, 115,634.67 and 39,729.16 is: 59,546.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,151.43 : 115,634.67 = 39,729.16 : x
  2. Step 2: Convert to fraction form
    77,151.43/115,634.67 = 39,729.16/x
  3. Step 3: Cross multiply
    77,151.43x = 115,634.67 × 39,729.16
  4. Step 4: Simplify right side
    77,151.43x = 4,594,068,305.98
  5. Step 5: Solve for x
    x = 4,594,068,305.98/77,151.43
  6. Step 6: Final answer
    x = 59,546.12

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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.