Home / 87,962.16-131,967.76-28,801.60

Finding the Fourth Proportional to 87,962.16, 131,967.76 and 28,801.60

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Solution

The fourth proportional to 87,962.16, 131,967.76 and 28,801.60 is: 43,210.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,962.16 : 131,967.76 = 28,801.60 : x
  2. Step 2: Convert to fraction form
    87,962.16/131,967.76 = 28,801.60/x
  3. Step 3: Cross multiply
    87,962.16x = 131,967.76 × 28,801.60
  4. Step 4: Simplify right side
    87,962.16x = 3,800,882,636.42
  5. Step 5: Solve for x
    x = 3,800,882,636.42/87,962.16
  6. Step 6: Final answer
    x = 43,210.43

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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.