Home / 74,363.62-111,529.02-21,777.20

Finding the Fourth Proportional to 74,363.62, 111,529.02 and 21,777.20

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Solution

The fourth proportional to 74,363.62, 111,529.02 and 21,777.20 is: 32,660.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,363.62 : 111,529.02 = 21,777.20 : x
  2. Step 2: Convert to fraction form
    74,363.62/111,529.02 = 21,777.20/x
  3. Step 3: Cross multiply
    74,363.62x = 111,529.02 × 21,777.20
  4. Step 4: Simplify right side
    74,363.62x = 2,428,789,774.34
  5. Step 5: Solve for x
    x = 2,428,789,774.34/74,363.62
  6. Step 6: Final answer
    x = 32,660.99

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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.