Home / 70,825.32-106,238.16-31,371.84

Finding the Fourth Proportional to 70,825.32, 106,238.16 and 31,371.84

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Solution

The fourth proportional to 70,825.32, 106,238.16 and 31,371.84 is: 47,057.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,825.32 : 106,238.16 = 31,371.84 : x
  2. Step 2: Convert to fraction form
    70,825.32/106,238.16 = 31,371.84/x
  3. Step 3: Cross multiply
    70,825.32x = 106,238.16 × 31,371.84
  4. Step 4: Simplify right side
    70,825.32x = 3,332,886,557.41
  5. Step 5: Solve for x
    x = 3,332,886,557.41/70,825.32
  6. Step 6: Final answer
    x = 47,057.84

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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.