Home / 67,759.04-101,620.20-28,307.90

Finding the Fourth Proportional to 67,759.04, 101,620.20 and 28,307.90

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Solution

The fourth proportional to 67,759.04, 101,620.20 and 28,307.90 is: 42,454.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,759.04 : 101,620.20 = 28,307.90 : x
  2. Step 2: Convert to fraction form
    67,759.04/101,620.20 = 28,307.90/x
  3. Step 3: Cross multiply
    67,759.04x = 101,620.20 × 28,307.90
  4. Step 4: Simplify right side
    67,759.04x = 2,876,654,459.58
  5. Step 5: Solve for x
    x = 2,876,654,459.58/67,759.04
  6. Step 6: Final answer
    x = 42,454.18

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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.