Home / 83,348-115,021.36-45,621.44

Finding the Fourth Proportional to 83,348, 115,021.36 and 45,621.44

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Solution

The fourth proportional to 83,348, 115,021.36 and 45,621.44 is: 62,958.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,348 : 115,021.36 = 45,621.44 : x
  2. Step 2: Convert to fraction form
    83,348/115,021.36 = 45,621.44/x
  3. Step 3: Cross multiply
    83,348x = 115,021.36 × 45,621.44
  4. Step 4: Simplify right side
    83,348x = 5,247,440,073.96
  5. Step 5: Solve for x
    x = 5,247,440,073.96/83,348
  6. Step 6: Final answer
    x = 62,958.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.