Home / 82,942.29-124,413.44-20,612.79

Finding the Fourth Proportional to 82,942.29, 124,413.44 and 20,612.79

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Solution

The fourth proportional to 82,942.29, 124,413.44 and 20,612.79 is: 30,919.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,942.29 : 124,413.44 = 20,612.79 : x
  2. Step 2: Convert to fraction form
    82,942.29/124,413.44 = 20,612.79/x
  3. Step 3: Cross multiply
    82,942.29x = 124,413.44 × 20,612.79
  4. Step 4: Simplify right side
    82,942.29x = 2,564,508,008.83
  5. Step 5: Solve for x
    x = 2,564,508,008.83/82,942.29
  6. Step 6: Final answer
    x = 30,919.19

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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.