Home / 66,216.50-91,380.56-36,003.85

Finding the Fourth Proportional to 66,216.50, 91,380.56 and 36,003.85

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Solution

The fourth proportional to 66,216.50, 91,380.56 and 36,003.85 is: 49,686.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,216.50 : 91,380.56 = 36,003.85 : x
  2. Step 2: Convert to fraction form
    66,216.50/91,380.56 = 36,003.85/x
  3. Step 3: Cross multiply
    66,216.50x = 91,380.56 × 36,003.85
  4. Step 4: Simplify right side
    66,216.50x = 3,290,051,975.16
  5. Step 5: Solve for x
    x = 3,290,051,975.16/66,216.50
  6. Step 6: Final answer
    x = 49,686.29

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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.