Home / 70,229.20-105,385.36-25,887.10

Finding the Fourth Proportional to 70,229.20, 105,385.36 and 25,887.10

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Solution

The fourth proportional to 70,229.20, 105,385.36 and 25,887.10 is: 38,845.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,229.20 : 105,385.36 = 25,887.10 : x
  2. Step 2: Convert to fraction form
    70,229.20/105,385.36 = 25,887.10/x
  3. Step 3: Cross multiply
    70,229.20x = 105,385.36 × 25,887.10
  4. Step 4: Simplify right side
    70,229.20x = 2,728,121,352.86
  5. Step 5: Solve for x
    x = 2,728,121,352.86/70,229.20
  6. Step 6: Final answer
    x = 38,845.97

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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.