Home / 75,015.38-103,531.02-43,185.62

Finding the Fourth Proportional to 75,015.38, 103,531.02 and 43,185.62

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Solution

The fourth proportional to 75,015.38, 103,531.02 and 43,185.62 is: 59,601.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,015.38 : 103,531.02 = 43,185.62 : x
  2. Step 2: Convert to fraction form
    75,015.38/103,531.02 = 43,185.62/x
  3. Step 3: Cross multiply
    75,015.38x = 103,531.02 × 43,185.62
  4. Step 4: Simplify right side
    75,015.38x = 4,471,051,287.93
  5. Step 5: Solve for x
    x = 4,471,051,287.93/75,015.38
  6. Step 6: Final answer
    x = 59,601.79

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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.