Home / 87,809.04-131,717.76-28,644.48

Finding the Fourth Proportional to 87,809.04, 131,717.76 and 28,644.48

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Solution

The fourth proportional to 87,809.04, 131,717.76 and 28,644.48 is: 42,968.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,809.04 : 131,717.76 = 28,644.48 : x
  2. Step 2: Convert to fraction form
    87,809.04/131,717.76 = 28,644.48/x
  3. Step 3: Cross multiply
    87,809.04x = 131,717.76 × 28,644.48
  4. Step 4: Simplify right side
    87,809.04x = 3,772,986,741.96
  5. Step 5: Solve for x
    x = 3,772,986,741.96/87,809.04
  6. Step 6: Final answer
    x = 42,968.09

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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.