Home / 78,634.82-117,867.39-38,607.25

Finding the Fourth Proportional to 78,634.82, 117,867.39 and 38,607.25

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Solution

The fourth proportional to 78,634.82, 117,867.39 and 38,607.25 is: 57,869.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,634.82 : 117,867.39 = 38,607.25 : x
  2. Step 2: Convert to fraction form
    78,634.82/117,867.39 = 38,607.25/x
  3. Step 3: Cross multiply
    78,634.82x = 117,867.39 × 38,607.25
  4. Step 4: Simplify right side
    78,634.82x = 4,550,535,497.91
  5. Step 5: Solve for x
    x = 4,550,535,497.91/78,634.82
  6. Step 6: Final answer
    x = 57,869.22

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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.