Home / 66,315.11-91,517.04-36,101.70

Finding the Fourth Proportional to 66,315.11, 91,517.04 and 36,101.70

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Solution

The fourth proportional to 66,315.11, 91,517.04 and 36,101.70 is: 49,821.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,315.11 : 91,517.04 = 36,101.70 : x
  2. Step 2: Convert to fraction form
    66,315.11/91,517.04 = 36,101.70/x
  3. Step 3: Cross multiply
    66,315.11x = 91,517.04 × 36,101.70
  4. Step 4: Simplify right side
    66,315.11x = 3,303,920,722.97
  5. Step 5: Solve for x
    x = 3,303,920,722.97/66,315.11
  6. Step 6: Final answer
    x = 49,821.54

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1.5x scale

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.