Home / 54,299.18-74,931.92-30,425.78

Finding the Fourth Proportional to 54,299.18, 74,931.92 and 30,425.78

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Solution

The fourth proportional to 54,299.18, 74,931.92 and 30,425.78 is: 41,987.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,299.18 : 74,931.92 = 30,425.78 : x
  2. Step 2: Convert to fraction form
    54,299.18/74,931.92 = 30,425.78/x
  3. Step 3: Cross multiply
    54,299.18x = 74,931.92 × 30,425.78
  4. Step 4: Simplify right side
    54,299.18x = 2,279,862,112.90
  5. Step 5: Solve for x
    x = 2,279,862,112.90/54,299.18
  6. Step 6: Final answer
    x = 41,987.04

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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.