Home / 87,536.40-131,153.40-40,693.20

Finding the Fourth Proportional to 87,536.40, 131,153.40 and 40,693.20

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Solution

The fourth proportional to 87,536.40, 131,153.40 and 40,693.20 is: 60,969.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,536.40 : 131,153.40 = 40,693.20 : x
  2. Step 2: Convert to fraction form
    87,536.40/131,153.40 = 40,693.20/x
  3. Step 3: Cross multiply
    87,536.40x = 131,153.40 × 40,693.20
  4. Step 4: Simplify right side
    87,536.40x = 5,337,051,536.88
  5. Step 5: Solve for x
    x = 5,337,051,536.88/87,536.40
  6. Step 6: Final answer
    x = 60,969.51

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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.