Home / 40,719.96-61,119.36-19,674.81

Finding the Fourth Proportional to 40,719.96, 61,119.36 and 19,674.81

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Solution

The fourth proportional to 40,719.96, 61,119.36 and 19,674.81 is: 29,531.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,719.96 : 61,119.36 = 19,674.81 : x
  2. Step 2: Convert to fraction form
    40,719.96/61,119.36 = 19,674.81/x
  3. Step 3: Cross multiply
    40,719.96x = 61,119.36 × 19,674.81
  4. Step 4: Simplify right side
    40,719.96x = 1,202,511,795.32
  5. Step 5: Solve for x
    x = 1,202,511,795.32/40,719.96
  6. Step 6: Final answer
    x = 29,531.26

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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.