Home / 87,840.14-131,740.44-40,409.66

Finding the Fourth Proportional to 87,840.14, 131,740.44 and 40,409.66

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Solution

The fourth proportional to 87,840.14, 131,740.44 and 40,409.66 is: 60,605.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,840.14 : 131,740.44 = 40,409.66 : x
  2. Step 2: Convert to fraction form
    87,840.14/131,740.44 = 40,409.66/x
  3. Step 3: Cross multiply
    87,840.14x = 131,740.44 × 40,409.66
  4. Step 4: Simplify right side
    87,840.14x = 5,323,585,729.95
  5. Step 5: Solve for x
    x = 5,323,585,729.95/87,840.14
  6. Step 6: Final answer
    x = 60,605.39

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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.