Home / 87,257.60-130,858.65-28,079.48

Finding the Fourth Proportional to 87,257.60, 130,858.65 and 28,079.48

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Solution

The fourth proportional to 87,257.60, 130,858.65 and 28,079.48 is: 42,110.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,257.60 : 130,858.65 = 28,079.48 : x
  2. Step 2: Convert to fraction form
    87,257.60/130,858.65 = 28,079.48/x
  3. Step 3: Cross multiply
    87,257.60x = 130,858.65 × 28,079.48
  4. Step 4: Simplify right side
    87,257.60x = 3,674,442,845.50
  5. Step 5: Solve for x
    x = 3,674,442,845.50/87,257.60
  6. Step 6: Final answer
    x = 42,110.29

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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.