Home / 84,223.85-126,298.78-31,596.46

Finding the Fourth Proportional to 84,223.85, 126,298.78 and 31,596.46

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Solution

The fourth proportional to 84,223.85, 126,298.78 and 31,596.46 is: 47,380.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,223.85 : 126,298.78 = 31,596.46 : x
  2. Step 2: Convert to fraction form
    84,223.85/126,298.78 = 31,596.46/x
  3. Step 3: Cross multiply
    84,223.85x = 126,298.78 × 31,596.46
  4. Step 4: Simplify right side
    84,223.85x = 3,990,593,955.58
  5. Step 5: Solve for x
    x = 3,990,593,955.58/84,223.85
  6. Step 6: Final answer
    x = 47,380.81

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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.