Home / 78,318.14-117,519.73-33,332.15

Finding the Fourth Proportional to 78,318.14, 117,519.73 and 33,332.15

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Solution

The fourth proportional to 78,318.14, 117,519.73 and 33,332.15 is: 50,016.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,318.14 : 117,519.73 = 33,332.15 : x
  2. Step 2: Convert to fraction form
    78,318.14/117,519.73 = 33,332.15/x
  3. Step 3: Cross multiply
    78,318.14x = 117,519.73 × 33,332.15
  4. Step 4: Simplify right side
    78,318.14x = 3,917,185,101.66
  5. Step 5: Solve for x
    x = 3,917,185,101.66/78,318.14
  6. Step 6: Final answer
    x = 50,016.32

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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.