Home / 66,540.70-99,761.13-40,240.06

Finding the Fourth Proportional to 66,540.70, 99,761.13 and 40,240.06

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Solution

The fourth proportional to 66,540.70, 99,761.13 and 40,240.06 is: 60,329.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,540.70 : 99,761.13 = 40,240.06 : x
  2. Step 2: Convert to fraction form
    66,540.70/99,761.13 = 40,240.06/x
  3. Step 3: Cross multiply
    66,540.70x = 99,761.13 × 40,240.06
  4. Step 4: Simplify right side
    66,540.70x = 4,014,393,856.87
  5. Step 5: Solve for x
    x = 4,014,393,856.87/66,540.70
  6. Step 6: Final answer
    x = 60,329.90

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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.