Home / 54,084.20-74,687.28-51,139.04

Finding the Fourth Proportional to 54,084.20, 74,687.28 and 51,139.04

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Solution

The fourth proportional to 54,084.20, 74,687.28 and 51,139.04 is: 70,620.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,084.20 : 74,687.28 = 51,139.04 : x
  2. Step 2: Convert to fraction form
    54,084.20/74,687.28 = 51,139.04/x
  3. Step 3: Cross multiply
    54,084.20x = 74,687.28 × 51,139.04
  4. Step 4: Simplify right side
    54,084.20x = 3,819,435,799.41
  5. Step 5: Solve for x
    x = 3,819,435,799.41/54,084.20
  6. Step 6: Final answer
    x = 70,620.18

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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.