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Finding the Fourth Proportional to 70,010.46, 104,984.02 and 20,079.09

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Solution

The fourth proportional to 70,010.46, 104,984.02 and 20,079.09 is: 30,109.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,010.46 : 104,984.02 = 20,079.09 : x
  2. Step 2: Convert to fraction form
    70,010.46/104,984.02 = 20,079.09/x
  3. Step 3: Cross multiply
    70,010.46x = 104,984.02 × 20,079.09
  4. Step 4: Simplify right side
    70,010.46x = 2,107,983,586.14
  5. Step 5: Solve for x
    x = 2,107,983,586.14/70,010.46
  6. Step 6: Final answer
    x = 30,109.55

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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.