Home / 87,914.45-131,869.85-21,354.93

Finding the Fourth Proportional to 87,914.45, 131,869.85 and 21,354.93

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Solution

The fourth proportional to 87,914.45, 131,869.85 and 21,354.93 is: 32,031.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,914.45 : 131,869.85 = 21,354.93 : x
  2. Step 2: Convert to fraction form
    87,914.45/131,869.85 = 21,354.93/x
  3. Step 3: Cross multiply
    87,914.45x = 131,869.85 × 21,354.93
  4. Step 4: Simplify right side
    87,914.45x = 2,816,071,415.86
  5. Step 5: Solve for x
    x = 2,816,071,415.86/87,914.45
  6. Step 6: Final answer
    x = 32,031.95

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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.