Home / 87,684.96-131,570.64-40,941.12

Finding the Fourth Proportional to 87,684.96, 131,570.64 and 40,941.12

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Solution

The fourth proportional to 87,684.96, 131,570.64 and 40,941.12 is: 61,431.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,684.96 : 131,570.64 = 40,941.12 : x
  2. Step 2: Convert to fraction form
    87,684.96/131,570.64 = 40,941.12/x
  3. Step 3: Cross multiply
    87,684.96x = 131,570.64 × 40,941.12
  4. Step 4: Simplify right side
    87,684.96x = 5,386,649,360.72
  5. Step 5: Solve for x
    x = 5,386,649,360.72/87,684.96
  6. Step 6: Final answer
    x = 61,431.85

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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.