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Finding the Fourth Proportional to 65,084.74, 89,815.75 and 36,790.43

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Solution

The fourth proportional to 65,084.74, 89,815.75 and 36,790.43 is: 50,770.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,084.74 : 89,815.75 = 36,790.43 : x
  2. Step 2: Convert to fraction form
    65,084.74/89,815.75 = 36,790.43/x
  3. Step 3: Cross multiply
    65,084.74x = 89,815.75 × 36,790.43
  4. Step 4: Simplify right side
    65,084.74x = 3,304,359,522.22
  5. Step 5: Solve for x
    x = 3,304,359,522.22/65,084.74
  6. Step 6: Final answer
    x = 50,770.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.