Home / 87,390.60-131,118.30-34,837.80

Finding the Fourth Proportional to 87,390.60, 131,118.30 and 34,837.80

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Solution

The fourth proportional to 87,390.60, 131,118.30 and 34,837.80 is: 52,269.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,390.60 : 131,118.30 = 34,837.80 : x
  2. Step 2: Convert to fraction form
    87,390.60/131,118.30 = 34,837.80/x
  3. Step 3: Cross multiply
    87,390.60x = 131,118.30 × 34,837.80
  4. Step 4: Simplify right side
    87,390.60x = 4,567,873,111.74
  5. Step 5: Solve for x
    x = 4,567,873,111.74/87,390.60
  6. Step 6: Final answer
    x = 52,269.62

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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.