Home / 76,738.19-115,090.88-23,418.21

Finding the Fourth Proportional to 76,738.19, 115,090.88 and 23,418.21

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Solution

The fourth proportional to 76,738.19, 115,090.88 and 23,418.21 is: 35,122.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,738.19 : 115,090.88 = 23,418.21 : x
  2. Step 2: Convert to fraction form
    76,738.19/115,090.88 = 23,418.21/x
  3. Step 3: Cross multiply
    76,738.19x = 115,090.88 × 23,418.21
  4. Step 4: Simplify right side
    76,738.19x = 2,695,222,711.42
  5. Step 5: Solve for x
    x = 2,695,222,711.42/76,738.19
  6. Step 6: Final answer
    x = 35,122.32

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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.