Home / 87,682.24-131,566.56-40,938.40

Finding the Fourth Proportional to 87,682.24, 131,566.56 and 40,938.40

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Solution

The fourth proportional to 87,682.24, 131,566.56 and 40,938.40 is: 61,427.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,682.24 : 131,566.56 = 40,938.40 : x
  2. Step 2: Convert to fraction form
    87,682.24/131,566.56 = 40,938.40/x
  3. Step 3: Cross multiply
    87,682.24x = 131,566.56 × 40,938.40
  4. Step 4: Simplify right side
    87,682.24x = 5,386,124,701.12
  5. Step 5: Solve for x
    x = 5,386,124,701.12/87,682.24
  6. Step 6: Final answer
    x = 61,427.77

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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.