Home / 68,606.24-94,691.52-40,320.80

Finding the Fourth Proportional to 68,606.24, 94,691.52 and 40,320.80

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Solution

The fourth proportional to 68,606.24, 94,691.52 and 40,320.80 is: 55,651.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,606.24 : 94,691.52 = 40,320.80 : x
  2. Step 2: Convert to fraction form
    68,606.24/94,691.52 = 40,320.80/x
  3. Step 3: Cross multiply
    68,606.24x = 94,691.52 × 40,320.80
  4. Step 4: Simplify right side
    68,606.24x = 3,818,037,839.62
  5. Step 5: Solve for x
    x = 3,818,037,839.62/68,606.24
  6. Step 6: Final answer
    x = 55,651.47

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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.