Home / 40,719.78-61,086.96-20,993.04

Finding the Fourth Proportional to 40,719.78, 61,086.96 and 20,993.04

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Solution

The fourth proportional to 40,719.78, 61,086.96 and 20,993.04 is: 31,493.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,719.78 : 61,086.96 = 20,993.04 : x
  2. Step 2: Convert to fraction form
    40,719.78/61,086.96 = 20,993.04/x
  3. Step 3: Cross multiply
    40,719.78x = 61,086.96 × 20,993.04
  4. Step 4: Simplify right side
    40,719.78x = 1,282,400,994.76
  5. Step 5: Solve for x
    x = 1,282,400,994.76/40,719.78
  6. Step 6: Final answer
    x = 31,493.32

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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.