Home / 83,807.89-115,679.40-49,840.27

Finding the Fourth Proportional to 83,807.89, 115,679.40 and 49,840.27

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Solution

The fourth proportional to 83,807.89, 115,679.40 and 49,840.27 is: 68,794.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,807.89 : 115,679.40 = 49,840.27 : x
  2. Step 2: Convert to fraction form
    83,807.89/115,679.40 = 49,840.27/x
  3. Step 3: Cross multiply
    83,807.89x = 115,679.40 × 49,840.27
  4. Step 4: Simplify right side
    83,807.89x = 5,765,492,529.44
  5. Step 5: Solve for x
    x = 5,765,492,529.44/83,807.89
  6. Step 6: Final answer
    x = 68,794.15

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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.