Home / 73,572.20-110,359.34-20,981.69

Finding the Fourth Proportional to 73,572.20, 110,359.34 and 20,981.69

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Solution

The fourth proportional to 73,572.20, 110,359.34 and 20,981.69 is: 31,472.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,572.20 : 110,359.34 = 20,981.69 : x
  2. Step 2: Convert to fraction form
    73,572.20/110,359.34 = 20,981.69/x
  3. Step 3: Cross multiply
    73,572.20x = 110,359.34 × 20,981.69
  4. Step 4: Simplify right side
    73,572.20x = 2,315,525,460.48
  5. Step 5: Solve for x
    x = 2,315,525,460.48/73,572.20
  6. Step 6: Final answer
    x = 31,472.83

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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.