Home / 86,838-119,836.44-49,111.44

Finding the Fourth Proportional to 86,838, 119,836.44 and 49,111.44

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Solution

The fourth proportional to 86,838, 119,836.44 and 49,111.44 is: 67,773.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,838 : 119,836.44 = 49,111.44 : x
  2. Step 2: Convert to fraction form
    86,838/119,836.44 = 49,111.44/x
  3. Step 3: Cross multiply
    86,838x = 119,836.44 × 49,111.44
  4. Step 4: Simplify right side
    86,838x = 5,885,340,132.87
  5. Step 5: Solve for x
    x = 5,885,340,132.87/86,838
  6. Step 6: Final answer
    x = 67,773.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.