Home / 66,146.05-91,282.22-35,931.97

Finding the Fourth Proportional to 66,146.05, 91,282.22 and 35,931.97

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Solution

The fourth proportional to 66,146.05, 91,282.22 and 35,931.97 is: 49,586.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,146.05 : 91,282.22 = 35,931.97 : x
  2. Step 2: Convert to fraction form
    66,146.05/91,282.22 = 35,931.97/x
  3. Step 3: Cross multiply
    66,146.05x = 91,282.22 × 35,931.97
  4. Step 4: Simplify right side
    66,146.05x = 3,279,949,990.57
  5. Step 5: Solve for x
    x = 3,279,949,990.57/66,146.05
  6. Step 6: Final answer
    x = 49,586.48

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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.