Home / 70,170.46-96,811.40-39,948.56

Finding the Fourth Proportional to 70,170.46, 96,811.40 and 39,948.56

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Solution

The fourth proportional to 70,170.46, 96,811.40 and 39,948.56 is: 55,115.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,170.46 : 96,811.40 = 39,948.56 : x
  2. Step 2: Convert to fraction form
    70,170.46/96,811.40 = 39,948.56/x
  3. Step 3: Cross multiply
    70,170.46x = 96,811.40 × 39,948.56
  4. Step 4: Simplify right side
    70,170.46x = 3,867,476,021.58
  5. Step 5: Solve for x
    x = 3,867,476,021.58/70,170.46
  6. Step 6: Final answer
    x = 55,115.44

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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.