Home / 68,979.12-103,403.06-43,948.90

Finding the Fourth Proportional to 68,979.12, 103,403.06 and 43,948.90

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Solution

The fourth proportional to 68,979.12, 103,403.06 and 43,948.90 is: 65,881.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,979.12 : 103,403.06 = 43,948.90 : x
  2. Step 2: Convert to fraction form
    68,979.12/103,403.06 = 43,948.90/x
  3. Step 3: Cross multiply
    68,979.12x = 103,403.06 × 43,948.90
  4. Step 4: Simplify right side
    68,979.12x = 4,544,450,743.63
  5. Step 5: Solve for x
    x = 4,544,450,743.63/68,979.12
  6. Step 6: Final answer
    x = 65,881.54

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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.