Home / 83,613.20-125,225.40-57,174.80

Finding the Fourth Proportional to 83,613.20, 125,225.40 and 57,174.80

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Solution

The fourth proportional to 83,613.20, 125,225.40 and 57,174.80 is: 85,629.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,613.20 : 125,225.40 = 57,174.80 : x
  2. Step 2: Convert to fraction form
    83,613.20/125,225.40 = 57,174.80/x
  3. Step 3: Cross multiply
    83,613.20x = 125,225.40 × 57,174.80
  4. Step 4: Simplify right side
    83,613.20x = 7,159,737,199.92
  5. Step 5: Solve for x
    x = 7,159,737,199.92/83,613.20
  6. Step 6: Final answer
    x = 85,629.27

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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.