Home / 57,742.20-86,613.30-54,534.60

Finding the Fourth Proportional to 57,742.20, 86,613.30 and 54,534.60

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Solution

The fourth proportional to 57,742.20, 86,613.30 and 54,534.60 is: 81,801.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,742.20 : 86,613.30 = 54,534.60 : x
  2. Step 2: Convert to fraction form
    57,742.20/86,613.30 = 54,534.60/x
  3. Step 3: Cross multiply
    57,742.20x = 86,613.30 × 54,534.60
  4. Step 4: Simplify right side
    57,742.20x = 4,723,421,670.18
  5. Step 5: Solve for x
    x = 4,723,421,670.18/57,742.20
  6. Step 6: Final answer
    x = 81,801.90

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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.