Home / 42,123.60-63,221.76-17,177.40

Finding the Fourth Proportional to 42,123.60, 63,221.76 and 17,177.40

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Solution

The fourth proportional to 42,123.60, 63,221.76 and 17,177.40 is: 25,780.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,123.60 : 63,221.76 = 17,177.40 : x
  2. Step 2: Convert to fraction form
    42,123.60/63,221.76 = 17,177.40/x
  3. Step 3: Cross multiply
    42,123.60x = 63,221.76 × 17,177.40
  4. Step 4: Simplify right side
    42,123.60x = 1,085,985,460.22
  5. Step 5: Solve for x
    x = 1,085,985,460.22/42,123.60
  6. Step 6: Final answer
    x = 25,780.93

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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.