Home / 70,107.72-96,747.34-39,892.36

Finding the Fourth Proportional to 70,107.72, 96,747.34 and 39,892.36

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Solution

The fourth proportional to 70,107.72, 96,747.34 and 39,892.36 is: 55,050.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,107.72 : 96,747.34 = 39,892.36 : x
  2. Step 2: Convert to fraction form
    70,107.72/96,747.34 = 39,892.36/x
  3. Step 3: Cross multiply
    70,107.72x = 96,747.34 × 39,892.36
  4. Step 4: Simplify right side
    70,107.72x = 3,859,479,716.32
  5. Step 5: Solve for x
    x = 3,859,479,716.32/70,107.72
  6. Step 6: Final answer
    x = 55,050.71

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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.