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Finding the Fourth Proportional to 81,793.80, 112,827.33 and 51,525.72

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Solution

The fourth proportional to 81,793.80, 112,827.33 and 51,525.72 is: 71,075.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,793.80 : 112,827.33 = 51,525.72 : x
  2. Step 2: Convert to fraction form
    81,793.80/112,827.33 = 51,525.72/x
  3. Step 3: Cross multiply
    81,793.80x = 112,827.33 × 51,525.72
  4. Step 4: Simplify right side
    81,793.80x = 5,813,509,413.93
  5. Step 5: Solve for x
    x = 5,813,509,413.93/81,793.80
  6. Step 6: Final answer
    x = 71,075.18

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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.