Home / 67,520.87-101,279.12-20,136.35

Finding the Fourth Proportional to 67,520.87, 101,279.12 and 20,136.35

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Solution

The fourth proportional to 67,520.87, 101,279.12 and 20,136.35 is: 30,203.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,520.87 : 101,279.12 = 20,136.35 : x
  2. Step 2: Convert to fraction form
    67,520.87/101,279.12 = 20,136.35/x
  3. Step 3: Cross multiply
    67,520.87x = 101,279.12 × 20,136.35
  4. Step 4: Simplify right side
    67,520.87x = 2,039,391,808.01
  5. Step 5: Solve for x
    x = 2,039,391,808.01/67,520.87
  6. Step 6: Final answer
    x = 30,203.88

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1.5x scale

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.