Home / 43,453.81-65,177.20-17,158.78

Finding the Fourth Proportional to 43,453.81, 65,177.20 and 17,158.78

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Solution

The fourth proportional to 43,453.81, 65,177.20 and 17,158.78 is: 25,736.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,453.81 : 65,177.20 = 17,158.78 : x
  2. Step 2: Convert to fraction form
    43,453.81/65,177.20 = 17,158.78/x
  3. Step 3: Cross multiply
    43,453.81x = 65,177.20 × 17,158.78
  4. Step 4: Simplify right side
    43,453.81x = 1,118,361,235.82
  5. Step 5: Solve for x
    x = 1,118,361,235.82/43,453.81
  6. Step 6: Final answer
    x = 25,736.78

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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.