Home / 78,271.26-117,400.66-22,109.10

Finding the Fourth Proportional to 78,271.26, 117,400.66 and 22,109.10

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Solution

The fourth proportional to 78,271.26, 117,400.66 and 22,109.10 is: 33,161.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,271.26 : 117,400.66 = 22,109.10 : x
  2. Step 2: Convert to fraction form
    78,271.26/117,400.66 = 22,109.10/x
  3. Step 3: Cross multiply
    78,271.26x = 117,400.66 × 22,109.10
  4. Step 4: Simplify right side
    78,271.26x = 2,595,622,436.48
  5. Step 5: Solve for x
    x = 2,595,622,436.48/78,271.26
  6. Step 6: Final answer
    x = 33,161.89

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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.