Home / 87,827.32-131,740.67-21,267.39

Finding the Fourth Proportional to 87,827.32, 131,740.67 and 21,267.39

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Solution

The fourth proportional to 87,827.32, 131,740.67 and 21,267.39 is: 31,901.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,827.32 : 131,740.67 = 21,267.39 : x
  2. Step 2: Convert to fraction form
    87,827.32/131,740.67 = 21,267.39/x
  3. Step 3: Cross multiply
    87,827.32x = 131,740.67 × 21,267.39
  4. Step 4: Simplify right side
    87,827.32x = 2,801,780,207.75
  5. Step 5: Solve for x
    x = 2,801,780,207.75/87,827.32
  6. Step 6: Final answer
    x = 31,901.01

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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.