Home / 70,229.30-96,892.70-39,993.20

Finding the Fourth Proportional to 70,229.30, 96,892.70 and 39,993.20

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Solution

The fourth proportional to 70,229.30, 96,892.70 and 39,993.20 is: 55,177.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,229.30 : 96,892.70 = 39,993.20 : x
  2. Step 2: Convert to fraction form
    70,229.30/96,892.70 = 39,993.20/x
  3. Step 3: Cross multiply
    70,229.30x = 96,892.70 × 39,993.20
  4. Step 4: Simplify right side
    70,229.30x = 3,875,049,129.64
  5. Step 5: Solve for x
    x = 3,875,049,129.64/70,229.30
  6. Step 6: Final answer
    x = 55,177.10

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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.