Home / 83,446.88-125,174.64-21,117.92

Finding the Fourth Proportional to 83,446.88, 125,174.64 and 21,117.92

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Solution

The fourth proportional to 83,446.88, 125,174.64 and 21,117.92 is: 31,677.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,446.88 : 125,174.64 = 21,117.92 : x
  2. Step 2: Convert to fraction form
    83,446.88/125,174.64 = 21,117.92/x
  3. Step 3: Cross multiply
    83,446.88x = 125,174.64 × 21,117.92
  4. Step 4: Simplify right side
    83,446.88x = 2,643,428,033.55
  5. Step 5: Solve for x
    x = 2,643,428,033.55/83,446.88
  6. Step 6: Final answer
    x = 31,677.97

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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.