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Finding the Fourth Proportional to 53,950.92, 80,902.11 and 20,647.70

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Solution

The fourth proportional to 53,950.92, 80,902.11 and 20,647.70 is: 30,962.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,950.92 : 80,902.11 = 20,647.70 : x
  2. Step 2: Convert to fraction form
    53,950.92/80,902.11 = 20,647.70/x
  3. Step 3: Cross multiply
    53,950.92x = 80,902.11 × 20,647.70
  4. Step 4: Simplify right side
    53,950.92x = 1,670,442,092.14
  5. Step 5: Solve for x
    x = 1,670,442,092.14/53,950.92
  6. Step 6: Final answer
    x = 30,962.25

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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.