Home / 78,272.57-117,402.62-22,110.41

Finding the Fourth Proportional to 78,272.57, 117,402.62 and 22,110.41

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Solution

The fourth proportional to 78,272.57, 117,402.62 and 22,110.41 is: 33,163.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,272.57 : 117,402.62 = 22,110.41 : x
  2. Step 2: Convert to fraction form
    78,272.57/117,402.62 = 22,110.41/x
  3. Step 3: Cross multiply
    78,272.57x = 117,402.62 × 22,110.41
  4. Step 4: Simplify right side
    78,272.57x = 2,595,820,412.06
  5. Step 5: Solve for x
    x = 2,595,820,412.06/78,272.57
  6. Step 6: Final answer
    x = 33,163.86

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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.