Home / 272,540.17-408,779.06-72,876.13

Finding the Fourth Proportional to 272,540.17, 408,779.06 and 72,876.13

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Solution

The fourth proportional to 272,540.17, 408,779.06 and 72,876.13 is: 109,305.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,540.17 : 408,779.06 = 72,876.13 : x
  2. Step 2: Convert to fraction form
    272,540.17/408,779.06 = 72,876.13/x
  3. Step 3: Cross multiply
    272,540.17x = 408,779.06 × 72,876.13
  4. Step 4: Simplify right side
    272,540.17x = 29,790,234,804.80
  5. Step 5: Solve for x
    x = 29,790,234,804.80/272,540.17
  6. Step 6: Final answer
    x = 109,305.85

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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.