Home / 75,454.39-103,995.25-55,268.38

Finding the Fourth Proportional to 75,454.39, 103,995.25 and 55,268.38

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Solution

The fourth proportional to 75,454.39, 103,995.25 and 55,268.38 is: 76,173.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,454.39 : 103,995.25 = 55,268.38 : x
  2. Step 2: Convert to fraction form
    75,454.39/103,995.25 = 55,268.38/x
  3. Step 3: Cross multiply
    75,454.39x = 103,995.25 × 55,268.38
  4. Step 4: Simplify right side
    75,454.39x = 5,747,648,995.20
  5. Step 5: Solve for x
    x = 5,747,648,995.20/75,454.39
  6. Step 6: Final answer
    x = 76,173.82

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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.