Home / 83,725.82-115,413.62-51,400.74

Finding the Fourth Proportional to 83,725.82, 115,413.62 and 51,400.74

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Solution

The fourth proportional to 83,725.82, 115,413.62 and 51,400.74 is: 70,854.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,725.82 : 115,413.62 = 51,400.74 : x
  2. Step 2: Convert to fraction form
    83,725.82/115,413.62 = 51,400.74/x
  3. Step 3: Cross multiply
    83,725.82x = 115,413.62 × 51,400.74
  4. Step 4: Simplify right side
    83,725.82x = 5,932,345,217.08
  5. Step 5: Solve for x
    x = 5,932,345,217.08/83,725.82
  6. Step 6: Final answer
    x = 70,854.43

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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.