Home / 66,022.50-91,111.20-37,728.12

Finding the Fourth Proportional to 66,022.50, 91,111.20 and 37,728.12

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Solution

The fourth proportional to 66,022.50, 91,111.20 and 37,728.12 is: 52,064.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,022.50 : 91,111.20 = 37,728.12 : x
  2. Step 2: Convert to fraction form
    66,022.50/91,111.20 = 37,728.12/x
  3. Step 3: Cross multiply
    66,022.50x = 91,111.20 × 37,728.12
  4. Step 4: Simplify right side
    66,022.50x = 3,437,454,286.94
  5. Step 5: Solve for x
    x = 3,437,454,286.94/66,022.50
  6. Step 6: Final answer
    x = 52,064.89

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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.