Home / 43,561.78-65,351.16-13,977.34

Finding the Fourth Proportional to 43,561.78, 65,351.16 and 13,977.34

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Solution

The fourth proportional to 43,561.78, 65,351.16 and 13,977.34 is: 20,968.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,561.78 : 65,351.16 = 13,977.34 : x
  2. Step 2: Convert to fraction form
    43,561.78/65,351.16 = 13,977.34/x
  3. Step 3: Cross multiply
    43,561.78x = 65,351.16 × 13,977.34
  4. Step 4: Simplify right side
    43,561.78x = 913,435,055.96
  5. Step 5: Solve for x
    x = 913,435,055.96/43,561.78
  6. Step 6: Final answer
    x = 20,968.73

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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.