Home / 87,353.60-130,998.40-28,204.80

Finding the Fourth Proportional to 87,353.60, 130,998.40 and 28,204.80

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Solution

The fourth proportional to 87,353.60, 130,998.40 and 28,204.80 is: 42,296.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,353.60 : 130,998.40 = 28,204.80 : x
  2. Step 2: Convert to fraction form
    87,353.60/130,998.40 = 28,204.80/x
  3. Step 3: Cross multiply
    87,353.60x = 130,998.40 × 28,204.80
  4. Step 4: Simplify right side
    87,353.60x = 3,694,783,672.32
  5. Step 5: Solve for x
    x = 3,694,783,672.32/87,353.60
  6. Step 6: Final answer
    x = 42,296.87

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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.