Home / 42,123.58-63,221.76-17,177.38

Finding the Fourth Proportional to 42,123.58, 63,221.76 and 17,177.38

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Solution

The fourth proportional to 42,123.58, 63,221.76 and 17,177.38 is: 25,780.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,123.58 : 63,221.76 = 17,177.38 : x
  2. Step 2: Convert to fraction form
    42,123.58/63,221.76 = 17,177.38/x
  3. Step 3: Cross multiply
    42,123.58x = 63,221.76 × 17,177.38
  4. Step 4: Simplify right side
    42,123.58x = 1,085,984,195.79
  5. Step 5: Solve for x
    x = 1,085,984,195.79/42,123.58
  6. Step 6: Final answer
    x = 25,780.91

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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.