Home / 68,981.58-95,194.49-40,320.95

Finding the Fourth Proportional to 68,981.58, 95,194.49 and 40,320.95

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Solution

The fourth proportional to 68,981.58, 95,194.49 and 40,320.95 is: 55,642.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,981.58 : 95,194.49 = 40,320.95 : x
  2. Step 2: Convert to fraction form
    68,981.58/95,194.49 = 40,320.95/x
  3. Step 3: Cross multiply
    68,981.58x = 95,194.49 × 40,320.95
  4. Step 4: Simplify right side
    68,981.58x = 3,838,331,593.99
  5. Step 5: Solve for x
    x = 3,838,331,593.99/68,981.58
  6. Step 6: Final answer
    x = 55,642.85

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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.