Home / 68,918.64-95,107.12-38,704.42

Finding the Fourth Proportional to 68,918.64, 95,107.12 and 38,704.42

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Solution

The fourth proportional to 68,918.64, 95,107.12 and 38,704.42 is: 53,411.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,918.64 : 95,107.12 = 38,704.42 : x
  2. Step 2: Convert to fraction form
    68,918.64/95,107.12 = 38,704.42/x
  3. Step 3: Cross multiply
    68,918.64x = 95,107.12 × 38,704.42
  4. Step 4: Simplify right side
    68,918.64x = 3,681,065,917.47
  5. Step 5: Solve for x
    x = 3,681,065,917.47/68,918.64
  6. Step 6: Final answer
    x = 53,411.76

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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.