Home / 72,138.94-108,220.03-22,219.01

Finding the Fourth Proportional to 72,138.94, 108,220.03 and 22,219.01

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Solution

The fourth proportional to 72,138.94, 108,220.03 and 22,219.01 is: 33,332.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,138.94 : 108,220.03 = 22,219.01 : x
  2. Step 2: Convert to fraction form
    72,138.94/108,220.03 = 22,219.01/x
  3. Step 3: Cross multiply
    72,138.94x = 108,220.03 × 22,219.01
  4. Step 4: Simplify right side
    72,138.94x = 2,404,541,816.06
  5. Step 5: Solve for x
    x = 2,404,541,816.06/72,138.94
  6. Step 6: Final answer
    x = 33,332.09

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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.