Home / 42,121.72-63,165.02-17,144.87

Finding the Fourth Proportional to 42,121.72, 63,165.02 and 17,144.87

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Solution

The fourth proportional to 42,121.72, 63,165.02 and 17,144.87 is: 25,710.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,121.72 : 63,165.02 = 17,144.87 : x
  2. Step 2: Convert to fraction form
    42,121.72/63,165.02 = 17,144.87/x
  3. Step 3: Cross multiply
    42,121.72x = 63,165.02 × 17,144.87
  4. Step 4: Simplify right side
    42,121.72x = 1,082,955,654.90
  5. Step 5: Solve for x
    x = 1,082,955,654.90/42,121.72
  6. Step 6: Final answer
    x = 25,710.15

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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.