Home / 67,341.38-101,002.34-20,581.70

Finding the Fourth Proportional to 67,341.38, 101,002.34 and 20,581.70

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Solution

The fourth proportional to 67,341.38, 101,002.34 and 20,581.70 is: 30,869.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,341.38 : 101,002.34 = 20,581.70 : x
  2. Step 2: Convert to fraction form
    67,341.38/101,002.34 = 20,581.70/x
  3. Step 3: Cross multiply
    67,341.38x = 101,002.34 × 20,581.70
  4. Step 4: Simplify right side
    67,341.38x = 2,078,799,861.18
  5. Step 5: Solve for x
    x = 2,078,799,861.18/67,341.38
  6. Step 6: Final answer
    x = 30,869.58

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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.