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Finding the Fourth Proportional to 72,151.27, 108,226.89 and 19,559.38

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Solution

The fourth proportional to 72,151.27, 108,226.89 and 19,559.38 is: 29,339.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,151.27 : 108,226.89 = 19,559.38 : x
  2. Step 2: Convert to fraction form
    72,151.27/108,226.89 = 19,559.38/x
  3. Step 3: Cross multiply
    72,151.27x = 108,226.89 × 19,559.38
  4. Step 4: Simplify right side
    72,151.27x = 2,116,850,867.73
  5. Step 5: Solve for x
    x = 2,116,850,867.73/72,151.27
  6. Step 6: Final answer
    x = 29,339.07

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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.