Home / 72,360.20-108,540.30-25,617.80

Finding the Fourth Proportional to 72,360.20, 108,540.30 and 25,617.80

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Solution

The fourth proportional to 72,360.20, 108,540.30 and 25,617.80 is: 38,426.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,360.20 : 108,540.30 = 25,617.80 : x
  2. Step 2: Convert to fraction form
    72,360.20/108,540.30 = 25,617.80/x
  3. Step 3: Cross multiply
    72,360.20x = 108,540.30 × 25,617.80
  4. Step 4: Simplify right side
    72,360.20x = 2,780,563,697.34
  5. Step 5: Solve for x
    x = 2,780,563,697.34/72,360.20
  6. Step 6: Final answer
    x = 38,426.70

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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.