Home / 66,381.97-91,606.61-36,167.20

Finding the Fourth Proportional to 66,381.97, 91,606.61 and 36,167.20

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Solution

The fourth proportional to 66,381.97, 91,606.61 and 36,167.20 is: 49,910.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,381.97 : 91,606.61 = 36,167.20 : x
  2. Step 2: Convert to fraction form
    66,381.97/91,606.61 = 36,167.20/x
  3. Step 3: Cross multiply
    66,381.97x = 91,606.61 × 36,167.20
  4. Step 4: Simplify right side
    66,381.97x = 3,313,154,585.19
  5. Step 5: Solve for x
    x = 3,313,154,585.19/66,381.97
  6. Step 6: Final answer
    x = 49,910.46

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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.