Home / 66,648.28-91,974.40-36,433.60

Finding the Fourth Proportional to 66,648.28, 91,974.40 and 36,433.60

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Solution

The fourth proportional to 66,648.28, 91,974.40 and 36,433.60 is: 50,278.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,648.28 : 91,974.40 = 36,433.60 : x
  2. Step 2: Convert to fraction form
    66,648.28/91,974.40 = 36,433.60/x
  3. Step 3: Cross multiply
    66,648.28x = 91,974.40 × 36,433.60
  4. Step 4: Simplify right side
    66,648.28x = 3,350,958,499.84
  5. Step 5: Solve for x
    x = 3,350,958,499.84/66,648.28
  6. Step 6: Final answer
    x = 50,278.24

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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.