Home / 72,268.38-108,419.04-38,987.73

Finding the Fourth Proportional to 72,268.38, 108,419.04 and 38,987.73

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Solution

The fourth proportional to 72,268.38, 108,419.04 and 38,987.73 is: 58,490.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,268.38 : 108,419.04 = 38,987.73 : x
  2. Step 2: Convert to fraction form
    72,268.38/108,419.04 = 38,987.73/x
  3. Step 3: Cross multiply
    72,268.38x = 108,419.04 × 38,987.73
  4. Step 4: Simplify right side
    72,268.38x = 4,227,012,258.38
  5. Step 5: Solve for x
    x = 4,227,012,258.38/72,268.38
  6. Step 6: Final answer
    x = 58,490.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.