Home / 83,731.24-115,429.62-59,849.20

Finding the Fourth Proportional to 83,731.24, 115,429.62 and 59,849.20

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Solution

The fourth proportional to 83,731.24, 115,429.62 and 59,849.20 is: 82,506.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,731.24 : 115,429.62 = 59,849.20 : x
  2. Step 2: Convert to fraction form
    83,731.24/115,429.62 = 59,849.20/x
  3. Step 3: Cross multiply
    83,731.24x = 115,429.62 × 59,849.20
  4. Step 4: Simplify right side
    83,731.24x = 6,908,370,413.30
  5. Step 5: Solve for x
    x = 6,908,370,413.30/83,731.24
  6. Step 6: Final answer
    x = 82,506.49

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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.