Home / 66,490.40-91,759.68-38,204.96

Finding the Fourth Proportional to 66,490.40, 91,759.68 and 38,204.96

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Solution

The fourth proportional to 66,490.40, 91,759.68 and 38,204.96 is: 52,724.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,490.40 : 91,759.68 = 38,204.96 : x
  2. Step 2: Convert to fraction form
    66,490.40/91,759.68 = 38,204.96/x
  3. Step 3: Cross multiply
    66,490.40x = 91,759.68 × 38,204.96
  4. Step 4: Simplify right side
    66,490.40x = 3,505,674,904.01
  5. Step 5: Solve for x
    x = 3,505,674,904.01/66,490.40
  6. Step 6: Final answer
    x = 52,724.53

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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.