Home / 66,180.96-91,330.30-35,966.28

Finding the Fourth Proportional to 66,180.96, 91,330.30 and 35,966.28

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Solution

The fourth proportional to 66,180.96, 91,330.30 and 35,966.28 is: 49,633.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,180.96 : 91,330.30 = 35,966.28 : x
  2. Step 2: Convert to fraction form
    66,180.96/91,330.30 = 35,966.28/x
  3. Step 3: Cross multiply
    66,180.96x = 91,330.30 × 35,966.28
  4. Step 4: Simplify right side
    66,180.96x = 3,284,811,142.28
  5. Step 5: Solve for x
    x = 3,284,811,142.28/66,180.96
  6. Step 6: Final answer
    x = 49,633.78

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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.