Home / 68,892.48-103,339.28-18,975.33

Finding the Fourth Proportional to 68,892.48, 103,339.28 and 18,975.33

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Solution

The fourth proportional to 68,892.48, 103,339.28 and 18,975.33 is: 28,463.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,892.48 : 103,339.28 = 18,975.33 : x
  2. Step 2: Convert to fraction form
    68,892.48/103,339.28 = 18,975.33/x
  3. Step 3: Cross multiply
    68,892.48x = 103,339.28 × 18,975.33
  4. Step 4: Simplify right side
    68,892.48x = 1,960,896,845.09
  5. Step 5: Solve for x
    x = 1,960,896,845.09/68,892.48
  6. Step 6: Final answer
    x = 28,463.15

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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.