Home / 83,650.90-125,365.60-61,359.90

Finding the Fourth Proportional to 83,650.90, 125,365.60 and 61,359.90

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Solution

The fourth proportional to 83,650.90, 125,365.60 and 61,359.90 is: 91,958.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,650.90 : 125,365.60 = 61,359.90 : x
  2. Step 2: Convert to fraction form
    83,650.90/125,365.60 = 61,359.90/x
  3. Step 3: Cross multiply
    83,650.90x = 125,365.60 × 61,359.90
  4. Step 4: Simplify right side
    83,650.90x = 7,692,420,679.44
  5. Step 5: Solve for x
    x = 7,692,420,679.44/83,650.90
  6. Step 6: Final answer
    x = 91,958.61

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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.