Home / 57,929.20-86,872.20-22,861.60

Finding the Fourth Proportional to 57,929.20, 86,872.20 and 22,861.60

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Solution

The fourth proportional to 57,929.20, 86,872.20 and 22,861.60 is: 34,283.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,929.20 : 86,872.20 = 22,861.60 : x
  2. Step 2: Convert to fraction form
    57,929.20/86,872.20 = 22,861.60/x
  3. Step 3: Cross multiply
    57,929.20x = 86,872.20 × 22,861.60
  4. Step 4: Simplify right side
    57,929.20x = 1,986,037,487.52
  5. Step 5: Solve for x
    x = 1,986,037,487.52/57,929.20
  6. Step 6: Final answer
    x = 34,283.88

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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.