Home / 72,601.11-108,874.13-28,222.43

Finding the Fourth Proportional to 72,601.11, 108,874.13 and 28,222.43

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Solution

The fourth proportional to 72,601.11, 108,874.13 and 28,222.43 is: 42,322.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,601.11 : 108,874.13 = 28,222.43 : x
  2. Step 2: Convert to fraction form
    72,601.11/108,874.13 = 28,222.43/x
  3. Step 3: Cross multiply
    72,601.11x = 108,874.13 × 28,222.43
  4. Step 4: Simplify right side
    72,601.11x = 3,072,691,827.25
  5. Step 5: Solve for x
    x = 3,072,691,827.25/72,601.11
  6. Step 6: Final answer
    x = 42,322.93

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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.