Home / 40,719.71-61,118.99-19,674.56

Finding the Fourth Proportional to 40,719.71, 61,118.99 and 19,674.56

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Solution

The fourth proportional to 40,719.71, 61,118.99 and 19,674.56 is: 29,530.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,719.71 : 61,118.99 = 19,674.56 : x
  2. Step 2: Convert to fraction form
    40,719.71/61,118.99 = 19,674.56/x
  3. Step 3: Cross multiply
    40,719.71x = 61,118.99 × 19,674.56
  4. Step 4: Simplify right side
    40,719.71x = 1,202,489,235.89
  5. Step 5: Solve for x
    x = 1,202,489,235.89/40,719.71
  6. Step 6: Final answer
    x = 29,530.89

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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.