Home / 87,996.16-131,966.84-28,818.64

Finding the Fourth Proportional to 87,996.16, 131,966.84 and 28,818.64

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Solution

The fourth proportional to 87,996.16, 131,966.84 and 28,818.64 is: 43,218.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,996.16 : 131,966.84 = 28,818.64 : x
  2. Step 2: Convert to fraction form
    87,996.16/131,966.84 = 28,818.64/x
  3. Step 3: Cross multiply
    87,996.16x = 131,966.84 × 28,818.64
  4. Step 4: Simplify right side
    87,996.16x = 3,803,104,853.90
  5. Step 5: Solve for x
    x = 3,803,104,853.90/87,996.16
  6. Step 6: Final answer
    x = 43,218.99

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1.5x scale

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.