Home / 83,909.90-125,865.18-33,990.93

Finding the Fourth Proportional to 83,909.90, 125,865.18 and 33,990.93

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Solution

The fourth proportional to 83,909.90, 125,865.18 and 33,990.93 is: 50,986.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,909.90 : 125,865.18 = 33,990.93 : x
  2. Step 2: Convert to fraction form
    83,909.90/125,865.18 = 33,990.93/x
  3. Step 3: Cross multiply
    83,909.90x = 125,865.18 × 33,990.93
  4. Step 4: Simplify right side
    83,909.90x = 4,278,274,522.82
  5. Step 5: Solve for x
    x = 4,278,274,522.82/83,909.90
  6. Step 6: Final answer
    x = 50,986.53

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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.