Home / 78,204.93-117,336.75-36,105.18

Finding the Fourth Proportional to 78,204.93, 117,336.75 and 36,105.18

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Solution

The fourth proportional to 78,204.93, 117,336.75 and 36,105.18 is: 54,171.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,204.93 : 117,336.75 = 36,105.18 : x
  2. Step 2: Convert to fraction form
    78,204.93/117,336.75 = 36,105.18/x
  3. Step 3: Cross multiply
    78,204.93x = 117,336.75 × 36,105.18
  4. Step 4: Simplify right side
    78,204.93x = 4,236,464,479.37
  5. Step 5: Solve for x
    x = 4,236,464,479.37/78,204.93
  6. Step 6: Final answer
    x = 54,171.32

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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.