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Finding the Fourth Proportional to 83,995.83, 125,994.02 and 57,620.61

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Solution

The fourth proportional to 83,995.83, 125,994.02 and 57,620.61 is: 86,431.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,995.83 : 125,994.02 = 57,620.61 : x
  2. Step 2: Convert to fraction form
    83,995.83/125,994.02 = 57,620.61/x
  3. Step 3: Cross multiply
    83,995.83x = 125,994.02 × 57,620.61
  4. Step 4: Simplify right side
    83,995.83x = 7,259,852,000.65
  5. Step 5: Solve for x
    x = 7,259,852,000.65/83,995.83
  6. Step 6: Final answer
    x = 86,431.10

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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.