Home / 68,529.69-102,781.92-31,080.75

Finding the Fourth Proportional to 68,529.69, 102,781.92 and 31,080.75

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Solution

The fourth proportional to 68,529.69, 102,781.92 and 31,080.75 is: 46,615.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,529.69 : 102,781.92 = 31,080.75 : x
  2. Step 2: Convert to fraction form
    68,529.69/102,781.92 = 31,080.75/x
  3. Step 3: Cross multiply
    68,529.69x = 102,781.92 × 31,080.75
  4. Step 4: Simplify right side
    68,529.69x = 3,194,539,160.04
  5. Step 5: Solve for x
    x = 3,194,539,160.04/68,529.69
  6. Step 6: Final answer
    x = 46,615.40

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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.