Home / 87,796.14-121,016.79-68,641.98

Finding the Fourth Proportional to 87,796.14, 121,016.79 and 68,641.98

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Solution

The fourth proportional to 87,796.14, 121,016.79 and 68,641.98 is: 94,615.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,796.14 : 121,016.79 = 68,641.98 : x
  2. Step 2: Convert to fraction form
    87,796.14/121,016.79 = 68,641.98/x
  3. Step 3: Cross multiply
    87,796.14x = 121,016.79 × 68,641.98
  4. Step 4: Simplify right side
    87,796.14x = 8,306,832,078.84
  5. Step 5: Solve for x
    x = 8,306,832,078.84/87,796.14
  6. Step 6: Final answer
    x = 94,615.00

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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.