Home / 68,716.94-103,543.56-56,510.42

Finding the Fourth Proportional to 68,716.94, 103,543.56 and 56,510.42

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Solution

The fourth proportional to 68,716.94, 103,543.56 and 56,510.42 is: 85,150.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,716.94 : 103,543.56 = 56,510.42 : x
  2. Step 2: Convert to fraction form
    68,716.94/103,543.56 = 56,510.42/x
  3. Step 3: Cross multiply
    68,716.94x = 103,543.56 × 56,510.42
  4. Step 4: Simplify right side
    68,716.94x = 5,851,289,546.18
  5. Step 5: Solve for x
    x = 5,851,289,546.18/68,716.94
  6. Step 6: Final answer
    x = 85,150.62

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.