Home / 87,877.88-131,817.02-31,757.63

Finding the Fourth Proportional to 87,877.88, 131,817.02 and 31,757.63

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Solution

The fourth proportional to 87,877.88, 131,817.02 and 31,757.63 is: 47,636.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,877.88 : 131,817.02 = 31,757.63 : x
  2. Step 2: Convert to fraction form
    87,877.88/131,817.02 = 31,757.63/x
  3. Step 3: Cross multiply
    87,877.88x = 131,817.02 × 31,757.63
  4. Step 4: Simplify right side
    87,877.88x = 4,186,195,330.99
  5. Step 5: Solve for x
    x = 4,186,195,330.99/87,877.88
  6. Step 6: Final answer
    x = 47,636.51

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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.