Home / 72,480.09-108,615.21-49,967.66

Finding the Fourth Proportional to 72,480.09, 108,615.21 and 49,967.66

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Solution

The fourth proportional to 72,480.09, 108,615.21 and 49,967.66 is: 74,879.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,480.09 : 108,615.21 = 49,967.66 : x
  2. Step 2: Convert to fraction form
    72,480.09/108,615.21 = 49,967.66/x
  3. Step 3: Cross multiply
    72,480.09x = 108,615.21 × 49,967.66
  4. Step 4: Simplify right side
    72,480.09x = 5,427,247,560.96
  5. Step 5: Solve for x
    x = 5,427,247,560.96/72,480.09
  6. Step 6: Final answer
    x = 74,879.15

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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.