Home / 72,520.25-108,780.38-25,774.97

Finding the Fourth Proportional to 72,520.25, 108,780.38 and 25,774.97

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Solution

The fourth proportional to 72,520.25, 108,780.38 and 25,774.97 is: 38,662.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,520.25 : 108,780.38 = 25,774.97 : x
  2. Step 2: Convert to fraction form
    72,520.25/108,780.38 = 25,774.97/x
  3. Step 3: Cross multiply
    72,520.25x = 108,780.38 × 25,774.97
  4. Step 4: Simplify right side
    72,520.25x = 2,803,811,031.09
  5. Step 5: Solve for x
    x = 2,803,811,031.09/72,520.25
  6. Step 6: Final answer
    x = 38,662.46

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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.