Home / 73,319.18-109,945.96-20,716.36

Finding the Fourth Proportional to 73,319.18, 109,945.96 and 20,716.36

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Solution

The fourth proportional to 73,319.18, 109,945.96 and 20,716.36 is: 31,065.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,319.18 : 109,945.96 = 20,716.36 : x
  2. Step 2: Convert to fraction form
    73,319.18/109,945.96 = 20,716.36/x
  3. Step 3: Cross multiply
    73,319.18x = 109,945.96 × 20,716.36
  4. Step 4: Simplify right side
    73,319.18x = 2,277,679,761.25
  5. Step 5: Solve for x
    x = 2,277,679,761.25/73,319.18
  6. Step 6: Final answer
    x = 31,065.27

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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.