Home / 77,839.24-107,398.38-47,613.52

Finding the Fourth Proportional to 77,839.24, 107,398.38 and 47,613.52

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Solution

The fourth proportional to 77,839.24, 107,398.38 and 47,613.52 is: 65,694.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,839.24 : 107,398.38 = 47,613.52 : x
  2. Step 2: Convert to fraction form
    77,839.24/107,398.38 = 47,613.52/x
  3. Step 3: Cross multiply
    77,839.24x = 107,398.38 × 47,613.52
  4. Step 4: Simplify right side
    77,839.24x = 5,113,614,914.10
  5. Step 5: Solve for x
    x = 5,113,614,914.10/77,839.24
  6. Step 6: Final answer
    x = 65,694.56

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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.