Home / 48,778.34-73,165.82-20,680.31

Finding the Fourth Proportional to 48,778.34, 73,165.82 and 20,680.31

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Solution

The fourth proportional to 48,778.34, 73,165.82 and 20,680.31 is: 31,019.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,778.34 : 73,165.82 = 20,680.31 : x
  2. Step 2: Convert to fraction form
    48,778.34/73,165.82 = 20,680.31/x
  3. Step 3: Cross multiply
    48,778.34x = 73,165.82 × 20,680.31
  4. Step 4: Simplify right side
    48,778.34x = 1,513,091,918.52
  5. Step 5: Solve for x
    x = 1,513,091,918.52/48,778.34
  6. Step 6: Final answer
    x = 31,019.75

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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.