Home / 68,618.52-102,913.35-19,359

Finding the Fourth Proportional to 68,618.52, 102,913.35 and 19,359

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Solution

The fourth proportional to 68,618.52, 102,913.35 and 19,359 is: 29,034.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,618.52 : 102,913.35 = 19,359 : x
  2. Step 2: Convert to fraction form
    68,618.52/102,913.35 = 19,359/x
  3. Step 3: Cross multiply
    68,618.52x = 102,913.35 × 19,359
  4. Step 4: Simplify right side
    68,618.52x = 1,992,299,542.65
  5. Step 5: Solve for x
    x = 1,992,299,542.65/68,618.52
  6. Step 6: Final answer
    x = 29,034.43

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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.