Home / 67,819.60-101,743.98-28,356.40

Finding the Fourth Proportional to 67,819.60, 101,743.98 and 28,356.40

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Solution

The fourth proportional to 67,819.60, 101,743.98 and 28,356.40 is: 42,540.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,819.60 : 101,743.98 = 28,356.40 : x
  2. Step 2: Convert to fraction form
    67,819.60/101,743.98 = 28,356.40/x
  3. Step 3: Cross multiply
    67,819.60x = 101,743.98 × 28,356.40
  4. Step 4: Simplify right side
    67,819.60x = 2,885,092,994.47
  5. Step 5: Solve for x
    x = 2,885,092,994.47/67,819.60
  6. Step 6: Final answer
    x = 42,540.70

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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.