Home / 57,742.20-86,613.30-42,190.20

Finding the Fourth Proportional to 57,742.20, 86,613.30 and 42,190.20

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Solution

The fourth proportional to 57,742.20, 86,613.30 and 42,190.20 is: 63,285.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,742.20 : 86,613.30 = 42,190.20 : x
  2. Step 2: Convert to fraction form
    57,742.20/86,613.30 = 42,190.20/x
  3. Step 3: Cross multiply
    57,742.20x = 86,613.30 × 42,190.20
  4. Step 4: Simplify right side
    57,742.20x = 3,654,232,449.66
  5. Step 5: Solve for x
    x = 3,654,232,449.66/57,742.20
  6. Step 6: Final answer
    x = 63,285.30

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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.