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Finding the Fourth Proportional to 70,027.84, 105,057.30 and 20,104.10

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Solution

The fourth proportional to 70,027.84, 105,057.30 and 20,104.10 is: 30,160.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,027.84 : 105,057.30 = 20,104.10 : x
  2. Step 2: Convert to fraction form
    70,027.84/105,057.30 = 20,104.10/x
  3. Step 3: Cross multiply
    70,027.84x = 105,057.30 × 20,104.10
  4. Step 4: Simplify right side
    70,027.84x = 2,112,082,409.00
  5. Step 5: Solve for x
    x = 2,112,082,409.00/70,027.84
  6. Step 6: Final answer
    x = 30,160.61

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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.