Home / 87,239.89-120,384.78-48,997.46

Finding the Fourth Proportional to 87,239.89, 120,384.78 and 48,997.46

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Solution

The fourth proportional to 87,239.89, 120,384.78 and 48,997.46 is: 67,612.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,239.89 : 120,384.78 = 48,997.46 : x
  2. Step 2: Convert to fraction form
    87,239.89/120,384.78 = 48,997.46/x
  3. Step 3: Cross multiply
    87,239.89x = 120,384.78 × 48,997.46
  4. Step 4: Simplify right side
    87,239.89x = 5,898,548,158.33
  5. Step 5: Solve for x
    x = 5,898,548,158.33/87,239.89
  6. Step 6: Final answer
    x = 67,612.97

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1.5x scale

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.