Home / 77,311.20-115,930.25-29,948.48

Finding the Fourth Proportional to 77,311.20, 115,930.25 and 29,948.48

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Solution

The fourth proportional to 77,311.20, 115,930.25 and 29,948.48 is: 44,908.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,311.20 : 115,930.25 = 29,948.48 : x
  2. Step 2: Convert to fraction form
    77,311.20/115,930.25 = 29,948.48/x
  3. Step 3: Cross multiply
    77,311.20x = 115,930.25 × 29,948.48
  4. Step 4: Simplify right side
    77,311.20x = 3,471,934,044.13
  5. Step 5: Solve for x
    x = 3,471,934,044.13/77,311.20
  6. Step 6: Final answer
    x = 44,908.55

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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.