Home / 42,121.08-63,142.56-15,843.24

Finding the Fourth Proportional to 42,121.08, 63,142.56 and 15,843.24

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Solution

The fourth proportional to 42,121.08, 63,142.56 and 15,843.24 is: 23,750.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,121.08 : 63,142.56 = 15,843.24 : x
  2. Step 2: Convert to fraction form
    42,121.08/63,142.56 = 15,843.24/x
  3. Step 3: Cross multiply
    42,121.08x = 63,142.56 × 15,843.24
  4. Step 4: Simplify right side
    42,121.08x = 1,000,382,732.29
  5. Step 5: Solve for x
    x = 1,000,382,732.29/42,121.08
  6. Step 6: Final answer
    x = 23,750.17

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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.