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Finding the Fourth Proportional to 53,499.48, 80,246.79 and 20,217

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Solution

The fourth proportional to 53,499.48, 80,246.79 and 20,217 is: 30,324.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,499.48 : 80,246.79 = 20,217 : x
  2. Step 2: Convert to fraction form
    53,499.48/80,246.79 = 20,217/x
  3. Step 3: Cross multiply
    53,499.48x = 80,246.79 × 20,217
  4. Step 4: Simplify right side
    53,499.48x = 1,622,349,353.43
  5. Step 5: Solve for x
    x = 1,622,349,353.43/53,499.48
  6. Step 6: Final answer
    x = 30,324.58

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1.5x scale

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.