Home / 87,712.48-131,611.88-40,968.64

Finding the Fourth Proportional to 87,712.48, 131,611.88 and 40,968.64

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Solution

The fourth proportional to 87,712.48, 131,611.88 and 40,968.64 is: 61,473.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,712.48 : 131,611.88 = 40,968.64 : x
  2. Step 2: Convert to fraction form
    87,712.48/131,611.88 = 40,968.64/x
  3. Step 3: Cross multiply
    87,712.48x = 131,611.88 × 40,968.64
  4. Step 4: Simplify right side
    87,712.48x = 5,391,959,731.44
  5. Step 5: Solve for x
    x = 5,391,959,731.44/87,712.48
  6. Step 6: Final answer
    x = 61,473.12

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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.