Home / 72,236.28-108,272.16-45,231.24

Finding the Fourth Proportional to 72,236.28, 108,272.16 and 45,231.24

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Solution

The fourth proportional to 72,236.28, 108,272.16 and 45,231.24 is: 67,795.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,236.28 : 108,272.16 = 45,231.24 : x
  2. Step 2: Convert to fraction form
    72,236.28/108,272.16 = 45,231.24/x
  3. Step 3: Cross multiply
    72,236.28x = 108,272.16 × 45,231.24
  4. Step 4: Simplify right side
    72,236.28x = 4,897,284,054.28
  5. Step 5: Solve for x
    x = 4,897,284,054.28/72,236.28
  6. Step 6: Final answer
    x = 67,795.35

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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.