Home / 87,932.70-131,897.86-21,372.64

Finding the Fourth Proportional to 87,932.70, 131,897.86 and 21,372.64

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Solution

The fourth proportional to 87,932.70, 131,897.86 and 21,372.64 is: 32,058.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,932.70 : 131,897.86 = 21,372.64 : x
  2. Step 2: Convert to fraction form
    87,932.70/131,897.86 = 21,372.64/x
  3. Step 3: Cross multiply
    87,932.70x = 131,897.86 × 21,372.64
  4. Step 4: Simplify right side
    87,932.70x = 2,819,005,478.55
  5. Step 5: Solve for x
    x = 2,819,005,478.55/87,932.70
  6. Step 6: Final answer
    x = 32,058.67

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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.