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Finding the Fourth Proportional to 81,373.96, 122,035.02 and 25,957

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Solution

The fourth proportional to 81,373.96, 122,035.02 and 25,957 is: 38,927.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,373.96 : 122,035.02 = 25,957 : x
  2. Step 2: Convert to fraction form
    81,373.96/122,035.02 = 25,957/x
  3. Step 3: Cross multiply
    81,373.96x = 122,035.02 × 25,957
  4. Step 4: Simplify right side
    81,373.96x = 3,167,663,014.14
  5. Step 5: Solve for x
    x = 3,167,663,014.14/81,373.96
  6. Step 6: Final answer
    x = 38,927.23

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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.