Home / 43,129.37-64,689.78-13,546.41

Finding the Fourth Proportional to 43,129.37, 64,689.78 and 13,546.41

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Solution

The fourth proportional to 43,129.37, 64,689.78 and 13,546.41 is: 20,318.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,129.37 : 64,689.78 = 13,546.41 : x
  2. Step 2: Convert to fraction form
    43,129.37/64,689.78 = 13,546.41/x
  3. Step 3: Cross multiply
    43,129.37x = 64,689.78 × 13,546.41
  4. Step 4: Simplify right side
    43,129.37x = 876,314,282.69
  5. Step 5: Solve for x
    x = 876,314,282.69/43,129.37
  6. Step 6: Final answer
    x = 20,318.27

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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.