Home / 68,976.48-103,456.08-57,364.32

Finding the Fourth Proportional to 68,976.48, 103,456.08 and 57,364.32

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Solution

The fourth proportional to 68,976.48, 103,456.08 and 57,364.32 is: 86,039.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,976.48 : 103,456.08 = 57,364.32 : x
  2. Step 2: Convert to fraction form
    68,976.48/103,456.08 = 57,364.32/x
  3. Step 3: Cross multiply
    68,976.48x = 103,456.08 × 57,364.32
  4. Step 4: Simplify right side
    68,976.48x = 5,934,687,679.07
  5. Step 5: Solve for x
    x = 5,934,687,679.07/68,976.48
  6. Step 6: Final answer
    x = 86,039.29

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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.