Home / 83,845.70-125,781.06-27,691.76

Finding the Fourth Proportional to 83,845.70, 125,781.06 and 27,691.76

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Solution

The fourth proportional to 83,845.70, 125,781.06 and 27,691.76 is: 41,541.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,845.70 : 125,781.06 = 27,691.76 : x
  2. Step 2: Convert to fraction form
    83,845.70/125,781.06 = 27,691.76/x
  3. Step 3: Cross multiply
    83,845.70x = 125,781.06 × 27,691.76
  4. Step 4: Simplify right side
    83,845.70x = 3,483,098,926.07
  5. Step 5: Solve for x
    x = 3,483,098,926.07/83,845.70
  6. Step 6: Final answer
    x = 41,541.77

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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.