Home / 54,332.76-74,979.40-31,687.38

Finding the Fourth Proportional to 54,332.76, 74,979.40 and 31,687.38

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Solution

The fourth proportional to 54,332.76, 74,979.40 and 31,687.38 is: 43,728.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,332.76 : 74,979.40 = 31,687.38 : x
  2. Step 2: Convert to fraction form
    54,332.76/74,979.40 = 31,687.38/x
  3. Step 3: Cross multiply
    54,332.76x = 74,979.40 × 31,687.38
  4. Step 4: Simplify right side
    54,332.76x = 2,375,900,739.97
  5. Step 5: Solve for x
    x = 2,375,900,739.97/54,332.76
  6. Step 6: Final answer
    x = 43,728.70

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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.