Home / 57,759.60-86,508.18-45,201.36

Finding the Fourth Proportional to 57,759.60, 86,508.18 and 45,201.36

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Solution

The fourth proportional to 57,759.60, 86,508.18 and 45,201.36 is: 67,699.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,759.60 : 86,508.18 = 45,201.36 : x
  2. Step 2: Convert to fraction form
    57,759.60/86,508.18 = 45,201.36/x
  3. Step 3: Cross multiply
    57,759.60x = 86,508.18 × 45,201.36
  4. Step 4: Simplify right side
    57,759.60x = 3,910,287,387.12
  5. Step 5: Solve for x
    x = 3,910,287,387.12/57,759.60
  6. Step 6: Final answer
    x = 67,699.35

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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.