Home / 45,327.17-67,967.39-20,345.79

Finding the Fourth Proportional to 45,327.17, 67,967.39 and 20,345.79

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Solution

The fourth proportional to 45,327.17, 67,967.39 and 20,345.79 is: 30,508.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,327.17 : 67,967.39 = 20,345.79 : x
  2. Step 2: Convert to fraction form
    45,327.17/67,967.39 = 20,345.79/x
  3. Step 3: Cross multiply
    45,327.17x = 67,967.39 × 20,345.79
  4. Step 4: Simplify right side
    45,327.17x = 1,382,850,142.06
  5. Step 5: Solve for x
    x = 1,382,850,142.06/45,327.17
  6. Step 6: Final answer
    x = 30,508.20

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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.