Home / 83,868.85-125,861.60-54,213.13

Finding the Fourth Proportional to 83,868.85, 125,861.60 and 54,213.13

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Solution

The fourth proportional to 83,868.85, 125,861.60 and 54,213.13 is: 81,357.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,868.85 : 125,861.60 = 54,213.13 : x
  2. Step 2: Convert to fraction form
    83,868.85/125,861.60 = 54,213.13/x
  3. Step 3: Cross multiply
    83,868.85x = 125,861.60 × 54,213.13
  4. Step 4: Simplify right side
    83,868.85x = 6,823,351,282.81
  5. Step 5: Solve for x
    x = 6,823,351,282.81/83,868.85
  6. Step 6: Final answer
    x = 81,357.40

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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.