Home / 67,623.40-101,380.14-28,209.88

Finding the Fourth Proportional to 67,623.40, 101,380.14 and 28,209.88

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Solution

The fourth proportional to 67,623.40, 101,380.14 and 28,209.88 is: 42,291.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,623.40 : 101,380.14 = 28,209.88 : x
  2. Step 2: Convert to fraction form
    67,623.40/101,380.14 = 28,209.88/x
  3. Step 3: Cross multiply
    67,623.40x = 101,380.14 × 28,209.88
  4. Step 4: Simplify right side
    67,623.40x = 2,859,921,583.78
  5. Step 5: Solve for x
    x = 2,859,921,583.78/67,623.40
  6. Step 6: Final answer
    x = 42,291.89

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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.