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Finding the Fourth Proportional to 40,008.60, 55,227.42 and 35,809.56

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Solution

The fourth proportional to 40,008.60, 55,227.42 and 35,809.56 is: 49,431.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,008.60 : 55,227.42 = 35,809.56 : x
  2. Step 2: Convert to fraction form
    40,008.60/55,227.42 = 35,809.56/x
  3. Step 3: Cross multiply
    40,008.60x = 55,227.42 × 35,809.56
  4. Step 4: Simplify right side
    40,008.60x = 1,977,669,610.14
  5. Step 5: Solve for x
    x = 1,977,669,610.14/40,008.60
  6. Step 6: Final answer
    x = 49,431.11

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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.