Home / 71,937.68-99,274.14-40,108.61

Finding the Fourth Proportional to 71,937.68, 99,274.14 and 40,108.61

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Solution

The fourth proportional to 71,937.68, 99,274.14 and 40,108.61 is: 55,349.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,937.68 : 99,274.14 = 40,108.61 : x
  2. Step 2: Convert to fraction form
    71,937.68/99,274.14 = 40,108.61/x
  3. Step 3: Cross multiply
    71,937.68x = 99,274.14 × 40,108.61
  4. Step 4: Simplify right side
    71,937.68x = 3,981,748,012.53
  5. Step 5: Solve for x
    x = 3,981,748,012.53/71,937.68
  6. Step 6: Final answer
    x = 55,349.97

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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.