Home / 39,664.64-54,689.96-36,318.53

Finding the Fourth Proportional to 39,664.64, 54,689.96 and 36,318.53

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Solution

The fourth proportional to 39,664.64, 54,689.96 and 36,318.53 is: 50,076.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,664.64 : 54,689.96 = 36,318.53 : x
  2. Step 2: Convert to fraction form
    39,664.64/54,689.96 = 36,318.53/x
  3. Step 3: Cross multiply
    39,664.64x = 54,689.96 × 36,318.53
  4. Step 4: Simplify right side
    39,664.64x = 1,986,258,770.70
  5. Step 5: Solve for x
    x = 1,986,258,770.70/39,664.64
  6. Step 6: Final answer
    x = 50,076.31

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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.