Home / 42,034.30-63,083.79-31,387.25

Finding the Fourth Proportional to 42,034.30, 63,083.79 and 31,387.25

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Solution

The fourth proportional to 42,034.30, 63,083.79 and 31,387.25 is: 47,105.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,034.30 : 63,083.79 = 31,387.25 : x
  2. Step 2: Convert to fraction form
    42,034.30/63,083.79 = 31,387.25/x
  3. Step 3: Cross multiply
    42,034.30x = 63,083.79 × 31,387.25
  4. Step 4: Simplify right side
    42,034.30x = 1,980,026,687.68
  5. Step 5: Solve for x
    x = 1,980,026,687.68/42,034.30
  6. Step 6: Final answer
    x = 47,105.02

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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.