Home / 67,193.03-100,789.55-20,445.91

Finding the Fourth Proportional to 67,193.03, 100,789.55 and 20,445.91

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Solution

The fourth proportional to 67,193.03, 100,789.55 and 20,445.91 is: 30,668.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,193.03 : 100,789.55 = 20,445.91 : x
  2. Step 2: Convert to fraction form
    67,193.03/100,789.55 = 20,445.91/x
  3. Step 3: Cross multiply
    67,193.03x = 100,789.55 × 20,445.91
  4. Step 4: Simplify right side
    67,193.03x = 2,060,734,068.24
  5. Step 5: Solve for x
    x = 2,060,734,068.24/67,193.03
  6. Step 6: Final answer
    x = 30,668.87

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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.