Home / 83,440.26-125,160.66-21,110.76

Finding the Fourth Proportional to 83,440.26, 125,160.66 and 21,110.76

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Solution

The fourth proportional to 83,440.26, 125,160.66 and 21,110.76 is: 31,666.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,440.26 : 125,160.66 = 21,110.76 : x
  2. Step 2: Convert to fraction form
    83,440.26/125,160.66 = 21,110.76/x
  3. Step 3: Cross multiply
    83,440.26x = 125,160.66 × 21,110.76
  4. Step 4: Simplify right side
    83,440.26x = 2,642,236,654.70
  5. Step 5: Solve for x
    x = 2,642,236,654.70/83,440.26
  6. Step 6: Final answer
    x = 31,666.21

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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.