Home / 87,968.45-121,318.02-68,592.11

Finding the Fourth Proportional to 87,968.45, 121,318.02 and 68,592.11

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Solution

The fourth proportional to 87,968.45, 121,318.02 and 68,592.11 is: 94,595.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,968.45 : 121,318.02 = 68,592.11 : x
  2. Step 2: Convert to fraction form
    87,968.45/121,318.02 = 68,592.11/x
  3. Step 3: Cross multiply
    87,968.45x = 121,318.02 × 68,592.11
  4. Step 4: Simplify right side
    87,968.45x = 8,321,458,366.23
  5. Step 5: Solve for x
    x = 8,321,458,366.23/87,968.45
  6. Step 6: Final answer
    x = 94,595.94

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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.