Home / 67,388.32-101,082.48-20,635.12

Finding the Fourth Proportional to 67,388.32, 101,082.48 and 20,635.12

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Solution

The fourth proportional to 67,388.32, 101,082.48 and 20,635.12 is: 30,952.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,388.32 : 101,082.48 = 20,635.12 : x
  2. Step 2: Convert to fraction form
    67,388.32/101,082.48 = 20,635.12/x
  3. Step 3: Cross multiply
    67,388.32x = 101,082.48 × 20,635.12
  4. Step 4: Simplify right side
    67,388.32x = 2,085,849,104.70
  5. Step 5: Solve for x
    x = 2,085,849,104.70/67,388.32
  6. Step 6: Final answer
    x = 30,952.68

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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.