Home / 72,256.32-108,419.04-25,531.20

Finding the Fourth Proportional to 72,256.32, 108,419.04 and 25,531.20

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Solution

The fourth proportional to 72,256.32, 108,419.04 and 25,531.20 is: 38,309.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,256.32 : 108,419.04 = 25,531.20 : x
  2. Step 2: Convert to fraction form
    72,256.32/108,419.04 = 25,531.20/x
  3. Step 3: Cross multiply
    72,256.32x = 108,419.04 × 25,531.20
  4. Step 4: Simplify right side
    72,256.32x = 2,768,068,194.05
  5. Step 5: Solve for x
    x = 2,768,068,194.05/72,256.32
  6. Step 6: Final answer
    x = 38,309.01

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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.