Home / 72,169.40-108,321.60-36,656.12

Finding the Fourth Proportional to 72,169.40, 108,321.60 and 36,656.12

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Solution

The fourth proportional to 72,169.40, 108,321.60 and 36,656.12 is: 55,018.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,169.40 : 108,321.60 = 36,656.12 : x
  2. Step 2: Convert to fraction form
    72,169.40/108,321.60 = 36,656.12/x
  3. Step 3: Cross multiply
    72,169.40x = 108,321.60 × 36,656.12
  4. Step 4: Simplify right side
    72,169.40x = 3,970,649,568.19
  5. Step 5: Solve for x
    x = 3,970,649,568.19/72,169.40
  6. Step 6: Final answer
    x = 55,018.46

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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.