Home / 40,742.24-61,144.64-18,259.84

Finding the Fourth Proportional to 40,742.24, 61,144.64 and 18,259.84

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Solution

The fourth proportional to 40,742.24, 61,144.64 and 18,259.84 is: 27,403.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,742.24 : 61,144.64 = 18,259.84 : x
  2. Step 2: Convert to fraction form
    40,742.24/61,144.64 = 18,259.84/x
  3. Step 3: Cross multiply
    40,742.24x = 61,144.64 × 18,259.84
  4. Step 4: Simplify right side
    40,742.24x = 1,116,491,343.26
  5. Step 5: Solve for x
    x = 1,116,491,343.26/40,742.24
  6. Step 6: Final answer
    x = 27,403.78

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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.