Home / 48,257.80-72,383.10-20,170.60

Finding the Fourth Proportional to 48,257.80, 72,383.10 and 20,170.60

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Solution

The fourth proportional to 48,257.80, 72,383.10 and 20,170.60 is: 30,254.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,257.80 : 72,383.10 = 20,170.60 : x
  2. Step 2: Convert to fraction form
    48,257.80/72,383.10 = 20,170.60/x
  3. Step 3: Cross multiply
    48,257.80x = 72,383.10 × 20,170.60
  4. Step 4: Simplify right side
    48,257.80x = 1,460,010,556.86
  5. Step 5: Solve for x
    x = 1,460,010,556.86/48,257.80
  6. Step 6: Final answer
    x = 30,254.40

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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.