Home / 45,983.08-68,979.48-19,680.76

Finding the Fourth Proportional to 45,983.08, 68,979.48 and 19,680.76

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Solution

The fourth proportional to 45,983.08, 68,979.48 and 19,680.76 is: 29,523.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,983.08 : 68,979.48 = 19,680.76 : x
  2. Step 2: Convert to fraction form
    45,983.08/68,979.48 = 19,680.76/x
  3. Step 3: Cross multiply
    45,983.08x = 68,979.48 × 19,680.76
  4. Step 4: Simplify right side
    45,983.08x = 1,357,568,590.80
  5. Step 5: Solve for x
    x = 1,357,568,590.80/45,983.08
  6. Step 6: Final answer
    x = 29,523.22

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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.