Home / 87,748.20-131,330.70-61,504.20

Finding the Fourth Proportional to 87,748.20, 131,330.70 and 61,504.20

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Solution

The fourth proportional to 87,748.20, 131,330.70 and 61,504.20 is: 92,051.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,748.20 : 131,330.70 = 61,504.20 : x
  2. Step 2: Convert to fraction form
    87,748.20/131,330.70 = 61,504.20/x
  3. Step 3: Cross multiply
    87,748.20x = 131,330.70 × 61,504.20
  4. Step 4: Simplify right side
    87,748.20x = 8,077,389,638.94
  5. Step 5: Solve for x
    x = 8,077,389,638.94/87,748.20
  6. Step 6: Final answer
    x = 92,051.91

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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.