Home / 45,930.42-68,786.28-31,904.46

Finding the Fourth Proportional to 45,930.42, 68,786.28 and 31,904.46

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Solution

The fourth proportional to 45,930.42, 68,786.28 and 31,904.46 is: 47,780.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,930.42 : 68,786.28 = 31,904.46 : x
  2. Step 2: Convert to fraction form
    45,930.42/68,786.28 = 31,904.46/x
  3. Step 3: Cross multiply
    45,930.42x = 68,786.28 × 31,904.46
  4. Step 4: Simplify right side
    45,930.42x = 2,194,589,118.81
  5. Step 5: Solve for x
    x = 2,194,589,118.81/45,930.42
  6. Step 6: Final answer
    x = 47,780.73

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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.