Home / 87,794.48-121,175.40-55,508.60

Finding the Fourth Proportional to 87,794.48, 121,175.40 and 55,508.60

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Solution

The fourth proportional to 87,794.48, 121,175.40 and 55,508.60 is: 76,613.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,794.48 : 121,175.40 = 55,508.60 : x
  2. Step 2: Convert to fraction form
    87,794.48/121,175.40 = 55,508.60/x
  3. Step 3: Cross multiply
    87,794.48x = 121,175.40 × 55,508.60
  4. Step 4: Simplify right side
    87,794.48x = 6,726,276,808.44
  5. Step 5: Solve for x
    x = 6,726,276,808.44/87,794.48
  6. Step 6: Final answer
    x = 76,613.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.