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Finding the Fourth Proportional to 77,306.88, 115,930.62 and 27,377.76

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Solution

The fourth proportional to 77,306.88, 115,930.62 and 27,377.76 is: 41,056.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,306.88 : 115,930.62 = 27,377.76 : x
  2. Step 2: Convert to fraction form
    77,306.88/115,930.62 = 27,377.76/x
  3. Step 3: Cross multiply
    77,306.88x = 115,930.62 × 27,377.76
  4. Step 4: Simplify right side
    77,306.88x = 3,173,920,691.01
  5. Step 5: Solve for x
    x = 3,173,920,691.01/77,306.88
  6. Step 6: Final answer
    x = 41,056.12

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1.5x scale

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.