Home / 81,648.22-122,358.24-44,127.40

Finding the Fourth Proportional to 81,648.22, 122,358.24 and 44,127.40

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Solution

The fourth proportional to 81,648.22, 122,358.24 and 44,127.40 is: 66,129.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,648.22 : 122,358.24 = 44,127.40 : x
  2. Step 2: Convert to fraction form
    81,648.22/122,358.24 = 44,127.40/x
  3. Step 3: Cross multiply
    81,648.22x = 122,358.24 × 44,127.40
  4. Step 4: Simplify right side
    81,648.22x = 5,399,350,999.78
  5. Step 5: Solve for x
    x = 5,399,350,999.78/81,648.22
  6. Step 6: Final answer
    x = 66,129.44

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1.5x scale

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.