Home / 78,287.06-117,434.56-22,131.24

Finding the Fourth Proportional to 78,287.06, 117,434.56 and 22,131.24

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Solution

The fourth proportional to 78,287.06, 117,434.56 and 22,131.24 is: 33,197.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,287.06 : 117,434.56 = 22,131.24 : x
  2. Step 2: Convert to fraction form
    78,287.06/117,434.56 = 22,131.24/x
  3. Step 3: Cross multiply
    78,287.06x = 117,434.56 × 22,131.24
  4. Step 4: Simplify right side
    78,287.06x = 2,598,972,431.65
  5. Step 5: Solve for x
    x = 2,598,972,431.65/78,287.06
  6. Step 6: Final answer
    x = 33,197.98

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1.5x scale

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.