Home / 87,367.10-130,853.70-61,188.68

Finding the Fourth Proportional to 87,367.10, 130,853.70 and 61,188.68

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Solution

The fourth proportional to 87,367.10, 130,853.70 and 61,188.68 is: 91,645.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,367.10 : 130,853.70 = 61,188.68 : x
  2. Step 2: Convert to fraction form
    87,367.10/130,853.70 = 61,188.68/x
  3. Step 3: Cross multiply
    87,367.10x = 130,853.70 × 61,188.68
  4. Step 4: Simplify right side
    87,367.10x = 8,006,765,176.12
  5. Step 5: Solve for x
    x = 8,006,765,176.12/87,367.10
  6. Step 6: Final answer
    x = 91,645.08

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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.