Home / 96,948.78-145,418.94-30,387.39

Finding the Fourth Proportional to 96,948.78, 145,418.94 and 30,387.39

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Solution

The fourth proportional to 96,948.78, 145,418.94 and 30,387.39 is: 45,579.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,948.78 : 145,418.94 = 30,387.39 : x
  2. Step 2: Convert to fraction form
    96,948.78/145,418.94 = 30,387.39/x
  3. Step 3: Cross multiply
    96,948.78x = 145,418.94 × 30,387.39
  4. Step 4: Simplify right side
    96,948.78x = 4,418,902,043.17
  5. Step 5: Solve for x
    x = 4,418,902,043.17/96,948.78
  6. Step 6: Final answer
    x = 45,579.76

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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.