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Finding the Fourth Proportional to 91,093.06, 136,654.08 and 38,503

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Solution

The fourth proportional to 91,093.06, 136,654.08 and 38,503 is: 57,760.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,093.06 : 136,654.08 = 38,503 : x
  2. Step 2: Convert to fraction form
    91,093.06/136,654.08 = 38,503/x
  3. Step 3: Cross multiply
    91,093.06x = 136,654.08 × 38,503
  4. Step 4: Simplify right side
    91,093.06x = 5,261,592,042.24
  5. Step 5: Solve for x
    x = 5,261,592,042.24/91,093.06
  6. Step 6: Final answer
    x = 57,760.62

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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.