Home / 75,579.72-113,413.39-38,142.72

Finding the Fourth Proportional to 75,579.72, 113,413.39 and 38,142.72

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Solution

The fourth proportional to 75,579.72, 113,413.39 and 38,142.72 is: 57,236.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,579.72 : 113,413.39 = 38,142.72 : x
  2. Step 2: Convert to fraction form
    75,579.72/113,413.39 = 38,142.72/x
  3. Step 3: Cross multiply
    75,579.72x = 113,413.39 × 38,142.72
  4. Step 4: Simplify right side
    75,579.72x = 4,325,895,179.02
  5. Step 5: Solve for x
    x = 4,325,895,179.02/75,579.72
  6. Step 6: Final answer
    x = 57,236.19

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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.