Home / 87,941.23-131,910.02-21,381.71

Finding the Fourth Proportional to 87,941.23, 131,910.02 and 21,381.71

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Solution

The fourth proportional to 87,941.23, 131,910.02 and 21,381.71 is: 32,072.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,941.23 : 131,910.02 = 21,381.71 : x
  2. Step 2: Convert to fraction form
    87,941.23/131,910.02 = 21,381.71/x
  3. Step 3: Cross multiply
    87,941.23x = 131,910.02 × 21,381.71
  4. Step 4: Simplify right side
    87,941.23x = 2,820,461,847.19
  5. Step 5: Solve for x
    x = 2,820,461,847.19/87,941.23
  6. Step 6: Final answer
    x = 32,072.12

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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.