Home / 87,133.10-120,243.66-49,407.26

Finding the Fourth Proportional to 87,133.10, 120,243.66 and 49,407.26

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Solution

The fourth proportional to 87,133.10, 120,243.66 and 49,407.26 is: 68,182.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,133.10 : 120,243.66 = 49,407.26 : x
  2. Step 2: Convert to fraction form
    87,133.10/120,243.66 = 49,407.26/x
  3. Step 3: Cross multiply
    87,133.10x = 120,243.66 × 49,407.26
  4. Step 4: Simplify right side
    87,133.10x = 5,940,909,772.97
  5. Step 5: Solve for x
    x = 5,940,909,772.97/87,133.10
  6. Step 6: Final answer
    x = 68,182.01

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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.