Home / 73,749.69-110,625.14-21,160.83

Finding the Fourth Proportional to 73,749.69, 110,625.14 and 21,160.83

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Solution

The fourth proportional to 73,749.69, 110,625.14 and 21,160.83 is: 31,741.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,749.69 : 110,625.14 = 21,160.83 : x
  2. Step 2: Convert to fraction form
    73,749.69/110,625.14 = 21,160.83/x
  3. Step 3: Cross multiply
    73,749.69x = 110,625.14 × 21,160.83
  4. Step 4: Simplify right side
    73,749.69x = 2,340,919,675.46
  5. Step 5: Solve for x
    x = 2,340,919,675.46/73,749.69
  6. Step 6: Final answer
    x = 31,741.42

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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.