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Finding the Fourth Proportional to 72,227.93, 99,673.97 and 40,396.80

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Solution

The fourth proportional to 72,227.93, 99,673.97 and 40,396.80 is: 55,747.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,227.93 : 99,673.97 = 40,396.80 : x
  2. Step 2: Convert to fraction form
    72,227.93/99,673.97 = 40,396.80/x
  3. Step 3: Cross multiply
    72,227.93x = 99,673.97 × 40,396.80
  4. Step 4: Simplify right side
    72,227.93x = 4,026,509,229.31
  5. Step 5: Solve for x
    x = 4,026,509,229.31/72,227.93
  6. Step 6: Final answer
    x = 55,747.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.