Home / 57,742.20-86,613.30-39,079.80

Finding the Fourth Proportional to 57,742.20, 86,613.30 and 39,079.80

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Solution

The fourth proportional to 57,742.20, 86,613.30 and 39,079.80 is: 58,619.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,742.20 : 86,613.30 = 39,079.80 : x
  2. Step 2: Convert to fraction form
    57,742.20/86,613.30 = 39,079.80/x
  3. Step 3: Cross multiply
    57,742.20x = 86,613.30 × 39,079.80
  4. Step 4: Simplify right side
    57,742.20x = 3,384,830,441.34
  5. Step 5: Solve for x
    x = 3,384,830,441.34/57,742.20
  6. Step 6: Final answer
    x = 58,619.70

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Similar ratio
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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.