Home / 67,854.10-101,732.55-28,390.90

Finding the Fourth Proportional to 67,854.10, 101,732.55 and 28,390.90

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Solution

The fourth proportional to 67,854.10, 101,732.55 and 28,390.90 is: 42,566.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,854.10 : 101,732.55 = 28,390.90 : x
  2. Step 2: Convert to fraction form
    67,854.10/101,732.55 = 28,390.90/x
  3. Step 3: Cross multiply
    67,854.10x = 101,732.55 × 28,390.90
  4. Step 4: Simplify right side
    67,854.10x = 2,888,278,653.80
  5. Step 5: Solve for x
    x = 2,888,278,653.80/67,854.10
  6. Step 6: Final answer
    x = 42,566.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.