Home / 72,813.09-109,234.22-22,905.75

Finding the Fourth Proportional to 72,813.09, 109,234.22 and 22,905.75

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Solution

The fourth proportional to 72,813.09, 109,234.22 and 22,905.75 is: 34,363.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,813.09 : 109,234.22 = 22,905.75 : x
  2. Step 2: Convert to fraction form
    72,813.09/109,234.22 = 22,905.75/x
  3. Step 3: Cross multiply
    72,813.09x = 109,234.22 × 22,905.75
  4. Step 4: Simplify right side
    72,813.09x = 2,502,091,734.77
  5. Step 5: Solve for x
    x = 2,502,091,734.77/72,813.09
  6. Step 6: Final answer
    x = 34,363.21

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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.