Home / 45,982.83-68,979.11-19,680.51

Finding the Fourth Proportional to 45,982.83, 68,979.11 and 19,680.51

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Solution

The fourth proportional to 45,982.83, 68,979.11 and 19,680.51 is: 29,522.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,982.83 : 68,979.11 = 19,680.51 : x
  2. Step 2: Convert to fraction form
    45,982.83/68,979.11 = 19,680.51/x
  3. Step 3: Cross multiply
    45,982.83x = 68,979.11 × 19,680.51
  4. Step 4: Simplify right side
    45,982.83x = 1,357,543,965.74
  5. Step 5: Solve for x
    x = 1,357,543,965.74/45,982.83
  6. Step 6: Final answer
    x = 29,522.85

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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.