Home / 70,189.31-96,861.09-39,974.63

Finding the Fourth Proportional to 70,189.31, 96,861.09 and 39,974.63

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Solution

The fourth proportional to 70,189.31, 96,861.09 and 39,974.63 is: 55,164.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,189.31 : 96,861.09 = 39,974.63 : x
  2. Step 2: Convert to fraction form
    70,189.31/96,861.09 = 39,974.63/x
  3. Step 3: Cross multiply
    70,189.31x = 96,861.09 × 39,974.63
  4. Step 4: Simplify right side
    70,189.31x = 3,871,986,234.15
  5. Step 5: Solve for x
    x = 3,871,986,234.15/70,189.31
  6. Step 6: Final answer
    x = 55,164.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.