Home / 87,586.02-120,861.86-49,343.90

Finding the Fourth Proportional to 87,586.02, 120,861.86 and 49,343.90

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Solution

The fourth proportional to 87,586.02, 120,861.86 and 49,343.90 is: 68,090.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,586.02 : 120,861.86 = 49,343.90 : x
  2. Step 2: Convert to fraction form
    87,586.02/120,861.86 = 49,343.90/x
  3. Step 3: Cross multiply
    87,586.02x = 120,861.86 × 49,343.90
  4. Step 4: Simplify right side
    87,586.02x = 5,963,794,682.63
  5. Step 5: Solve for x
    x = 5,963,794,682.63/87,586.02
  6. Step 6: Final answer
    x = 68,090.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.