Home / 87,192.62-130,881.09-40,490.54

Finding the Fourth Proportional to 87,192.62, 130,881.09 and 40,490.54

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Solution

The fourth proportional to 87,192.62, 130,881.09 and 40,490.54 is: 60,778.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,192.62 : 130,881.09 = 40,490.54 : x
  2. Step 2: Convert to fraction form
    87,192.62/130,881.09 = 40,490.54/x
  3. Step 3: Cross multiply
    87,192.62x = 130,881.09 × 40,490.54
  4. Step 4: Simplify right side
    87,192.62x = 5,299,446,009.89
  5. Step 5: Solve for x
    x = 5,299,446,009.89/87,192.62
  6. Step 6: Final answer
    x = 60,778.61

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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.