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Finding the Fourth Proportional to 73,401.50, 110,107.74 and 20,815.22

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Solution

The fourth proportional to 73,401.50, 110,107.74 and 20,815.22 is: 31,224.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,401.50 : 110,107.74 = 20,815.22 : x
  2. Step 2: Convert to fraction form
    73,401.50/110,107.74 = 20,815.22/x
  3. Step 3: Cross multiply
    73,401.50x = 110,107.74 × 20,815.22
  4. Step 4: Simplify right side
    73,401.50x = 2,291,916,831.80
  5. Step 5: Solve for x
    x = 2,291,916,831.80/73,401.50
  6. Step 6: Final answer
    x = 31,224.39

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1.5x scale

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.