Home / 78,288.70-117,440.74-22,129.24

Finding the Fourth Proportional to 78,288.70, 117,440.74 and 22,129.24

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Solution

The fourth proportional to 78,288.70, 117,440.74 and 22,129.24 is: 33,196.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,288.70 : 117,440.74 = 22,129.24 : x
  2. Step 2: Convert to fraction form
    78,288.70/117,440.74 = 22,129.24/x
  3. Step 3: Cross multiply
    78,288.70x = 117,440.74 × 22,129.24
  4. Step 4: Simplify right side
    78,288.70x = 2,598,874,321.24
  5. Step 5: Solve for x
    x = 2,598,874,321.24/78,288.70
  6. Step 6: Final answer
    x = 33,196.03

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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.