Home / 72,125.40-108,188.10-25,372.20

Finding the Fourth Proportional to 72,125.40, 108,188.10 and 25,372.20

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Solution

The fourth proportional to 72,125.40, 108,188.10 and 25,372.20 is: 38,058.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,125.40 : 108,188.10 = 25,372.20 : x
  2. Step 2: Convert to fraction form
    72,125.40/108,188.10 = 25,372.20/x
  3. Step 3: Cross multiply
    72,125.40x = 108,188.10 × 25,372.20
  4. Step 4: Simplify right side
    72,125.40x = 2,744,970,110.82
  5. Step 5: Solve for x
    x = 2,744,970,110.82/72,125.40
  6. Step 6: Final answer
    x = 38,058.30

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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.