Home / 76,757.52-115,159.55-39,344.12

Finding the Fourth Proportional to 76,757.52, 115,159.55 and 39,344.12

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Solution

The fourth proportional to 76,757.52, 115,159.55 and 39,344.12 is: 59,028.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,757.52 : 115,159.55 = 39,344.12 : x
  2. Step 2: Convert to fraction form
    76,757.52/115,159.55 = 39,344.12/x
  3. Step 3: Cross multiply
    76,757.52x = 115,159.55 × 39,344.12
  4. Step 4: Simplify right side
    76,757.52x = 4,530,850,381.83
  5. Step 5: Solve for x
    x = 4,530,850,381.83/76,757.52
  6. Step 6: Final answer
    x = 59,028.10

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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.