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Finding the Fourth Proportional to 89,328.30, 133,941.42 and 36,694.50

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Solution

The fourth proportional to 89,328.30, 133,941.42 and 36,694.50 is: 55,020.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,328.30 : 133,941.42 = 36,694.50 : x
  2. Step 2: Convert to fraction form
    89,328.30/133,941.42 = 36,694.50/x
  3. Step 3: Cross multiply
    89,328.30x = 133,941.42 × 36,694.50
  4. Step 4: Simplify right side
    89,328.30x = 4,914,913,436.19
  5. Step 5: Solve for x
    x = 4,914,913,436.19/89,328.30
  6. Step 6: Final answer
    x = 55,020.79

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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.