Home / 54,103.20-74,713.50-51,158.04

Finding the Fourth Proportional to 54,103.20, 74,713.50 and 51,158.04

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Solution

The fourth proportional to 54,103.20, 74,713.50 and 51,158.04 is: 70,646.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,103.20 : 74,713.50 = 51,158.04 : x
  2. Step 2: Convert to fraction form
    54,103.20/74,713.50 = 51,158.04/x
  3. Step 3: Cross multiply
    54,103.20x = 74,713.50 × 51,158.04
  4. Step 4: Simplify right side
    54,103.20x = 3,822,196,221.54
  5. Step 5: Solve for x
    x = 3,822,196,221.54/54,103.20
  6. Step 6: Final answer
    x = 70,646.40

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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.