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Finding the Fourth Proportional to 81,062.44, 121,592.22 and 25,657

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Solution

The fourth proportional to 81,062.44, 121,592.22 and 25,657 is: 38,485.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,062.44 : 121,592.22 = 25,657 : x
  2. Step 2: Convert to fraction form
    81,062.44/121,592.22 = 25,657/x
  3. Step 3: Cross multiply
    81,062.44x = 121,592.22 × 25,657
  4. Step 4: Simplify right side
    81,062.44x = 3,119,691,588.54
  5. Step 5: Solve for x
    x = 3,119,691,588.54/81,062.44
  6. Step 6: Final answer
    x = 38,485.04

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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.