Home / 87,576.36-131,407.47-54,287.61

Finding the Fourth Proportional to 87,576.36, 131,407.47 and 54,287.61

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Solution

The fourth proportional to 87,576.36, 131,407.47 and 54,287.61 is: 81,458.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,576.36 : 131,407.47 = 54,287.61 : x
  2. Step 2: Convert to fraction form
    87,576.36/131,407.47 = 54,287.61/x
  3. Step 3: Cross multiply
    87,576.36x = 131,407.47 × 54,287.61
  4. Step 4: Simplify right side
    87,576.36x = 7,133,797,482.45
  5. Step 5: Solve for x
    x = 7,133,797,482.45/87,576.36
  6. Step 6: Final answer
    x = 81,458.03

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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.