Home / 40,413.62-60,731.19-38,120.90

Finding the Fourth Proportional to 40,413.62, 60,731.19 and 38,120.90

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Solution

The fourth proportional to 40,413.62, 60,731.19 and 38,120.90 is: 57,285.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,413.62 : 60,731.19 = 38,120.90 : x
  2. Step 2: Convert to fraction form
    40,413.62/60,731.19 = 38,120.90/x
  3. Step 3: Cross multiply
    40,413.62x = 60,731.19 × 38,120.90
  4. Step 4: Simplify right side
    40,413.62x = 2,315,127,620.87
  5. Step 5: Solve for x
    x = 2,315,127,620.87/40,413.62
  6. Step 6: Final answer
    x = 57,285.83

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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.