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Finding the Fourth Proportional to 89,394, 134,089.26 and 36,084.57

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Solution

The fourth proportional to 89,394, 134,089.26 and 36,084.57 is: 54,126.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,394 : 134,089.26 = 36,084.57 : x
  2. Step 2: Convert to fraction form
    89,394/134,089.26 = 36,084.57/x
  3. Step 3: Cross multiply
    89,394x = 134,089.26 × 36,084.57
  4. Step 4: Simplify right side
    89,394x = 4,838,553,288.72
  5. Step 5: Solve for x
    x = 4,838,553,288.72/89,394
  6. Step 6: Final answer
    x = 54,126.15

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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.