Home / 81,369.64-121,587.97-62,028.44

Finding the Fourth Proportional to 81,369.64, 121,587.97 and 62,028.44

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Solution

The fourth proportional to 81,369.64, 121,587.97 and 62,028.44 is: 92,687.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,369.64 : 121,587.97 = 62,028.44 : x
  2. Step 2: Convert to fraction form
    81,369.64/121,587.97 = 62,028.44/x
  3. Step 3: Cross multiply
    81,369.64x = 121,587.97 × 62,028.44
  4. Step 4: Simplify right side
    81,369.64x = 7,541,912,101.87
  5. Step 5: Solve for x
    x = 7,541,912,101.87/81,369.64
  6. Step 6: Final answer
    x = 92,687.05

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.