Home / 67,742.20-101,613.30-66,446.20

Finding the Fourth Proportional to 67,742.20, 101,613.30 and 66,446.20

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Solution

The fourth proportional to 67,742.20, 101,613.30 and 66,446.20 is: 99,669.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,742.20 : 101,613.30 = 66,446.20 : x
  2. Step 2: Convert to fraction form
    67,742.20/101,613.30 = 66,446.20/x
  3. Step 3: Cross multiply
    67,742.20x = 101,613.30 × 66,446.20
  4. Step 4: Simplify right side
    67,742.20x = 6,751,817,654.46
  5. Step 5: Solve for x
    x = 6,751,817,654.46/67,742.20
  6. Step 6: Final answer
    x = 99,669.30

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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.