Home / 68,039.76-102,036.93-28,589.52

Finding the Fourth Proportional to 68,039.76, 102,036.93 and 28,589.52

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Solution

The fourth proportional to 68,039.76, 102,036.93 and 28,589.52 is: 42,874.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,039.76 : 102,036.93 = 28,589.52 : x
  2. Step 2: Convert to fraction form
    68,039.76/102,036.93 = 28,589.52/x
  3. Step 3: Cross multiply
    68,039.76x = 102,036.93 × 28,589.52
  4. Step 4: Simplify right side
    68,039.76x = 2,917,186,850.97
  5. Step 5: Solve for x
    x = 2,917,186,850.97/68,039.76
  6. Step 6: Final answer
    x = 42,874.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.