Home / 87,583.50-120,868.11-47,839.50

Finding the Fourth Proportional to 87,583.50, 120,868.11 and 47,839.50

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Solution

The fourth proportional to 87,583.50, 120,868.11 and 47,839.50 is: 66,020.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,583.50 : 120,868.11 = 47,839.50 : x
  2. Step 2: Convert to fraction form
    87,583.50/120,868.11 = 47,839.50/x
  3. Step 3: Cross multiply
    87,583.50x = 120,868.11 × 47,839.50
  4. Step 4: Simplify right side
    87,583.50x = 5,782,269,948.35
  5. Step 5: Solve for x
    x = 5,782,269,948.35/87,583.50
  6. Step 6: Final answer
    x = 66,020.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.