Home / 54,331.38-74,977.56-31,686.08

Finding the Fourth Proportional to 54,331.38, 74,977.56 and 31,686.08

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Solution

The fourth proportional to 54,331.38, 74,977.56 and 31,686.08 is: 43,726.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,331.38 : 74,977.56 = 31,686.08 : x
  2. Step 2: Convert to fraction form
    54,331.38/74,977.56 = 31,686.08/x
  3. Step 3: Cross multiply
    54,331.38x = 74,977.56 × 31,686.08
  4. Step 4: Simplify right side
    54,331.38x = 2,375,744,964.36
  5. Step 5: Solve for x
    x = 2,375,744,964.36/54,331.38
  6. Step 6: Final answer
    x = 43,726.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.