Home / 72,581.32-108,839.16-25,835.44

Finding the Fourth Proportional to 72,581.32, 108,839.16 and 25,835.44

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Solution

The fourth proportional to 72,581.32, 108,839.16 and 25,835.44 is: 38,741.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,581.32 : 108,839.16 = 25,835.44 : x
  2. Step 2: Convert to fraction form
    72,581.32/108,839.16 = 25,835.44/x
  3. Step 3: Cross multiply
    72,581.32x = 108,839.16 × 25,835.44
  4. Step 4: Simplify right side
    72,581.32x = 2,811,907,587.83
  5. Step 5: Solve for x
    x = 2,811,907,587.83/72,581.32
  6. Step 6: Final answer
    x = 38,741.48

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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.