Home / 74,581.92-111,876.36-21,991.80

Finding the Fourth Proportional to 74,581.92, 111,876.36 and 21,991.80

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Solution

The fourth proportional to 74,581.92, 111,876.36 and 21,991.80 is: 32,988.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,581.92 : 111,876.36 = 21,991.80 : x
  2. Step 2: Convert to fraction form
    74,581.92/111,876.36 = 21,991.80/x
  3. Step 3: Cross multiply
    74,581.92x = 111,876.36 × 21,991.80
  4. Step 4: Simplify right side
    74,581.92x = 2,460,362,533.85
  5. Step 5: Solve for x
    x = 2,460,362,533.85/74,581.92
  6. Step 6: Final answer
    x = 32,988.73

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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.