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Finding the Fourth Proportional to 81,761.54, 112,833.77 and 45,950.81

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Solution

The fourth proportional to 81,761.54, 112,833.77 and 45,950.81 is: 63,413.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,761.54 : 112,833.77 = 45,950.81 : x
  2. Step 2: Convert to fraction form
    81,761.54/112,833.77 = 45,950.81/x
  3. Step 3: Cross multiply
    81,761.54x = 112,833.77 × 45,950.81
  4. Step 4: Simplify right side
    81,761.54x = 5,184,802,332.93
  5. Step 5: Solve for x
    x = 5,184,802,332.93/81,761.54
  6. Step 6: Final answer
    x = 63,413.71

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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.