Home / 84,781.44-127,195.20-29,381.76

Finding the Fourth Proportional to 84,781.44, 127,195.20 and 29,381.76

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Solution

The fourth proportional to 84,781.44, 127,195.20 and 29,381.76 is: 44,080.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,781.44 : 127,195.20 = 29,381.76 : x
  2. Step 2: Convert to fraction form
    84,781.44/127,195.20 = 29,381.76/x
  3. Step 3: Cross multiply
    84,781.44x = 127,195.20 × 29,381.76
  4. Step 4: Simplify right side
    84,781.44x = 3,737,218,839.55
  5. Step 5: Solve for x
    x = 3,737,218,839.55/84,781.44
  6. Step 6: Final answer
    x = 44,080.62

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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.