Home / 67,020.53-100,377.68-31,984.79

Finding the Fourth Proportional to 67,020.53, 100,377.68 and 31,984.79

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Solution

The fourth proportional to 67,020.53, 100,377.68 and 31,984.79 is: 47,904.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,020.53 : 100,377.68 = 31,984.79 : x
  2. Step 2: Convert to fraction form
    67,020.53/100,377.68 = 31,984.79/x
  3. Step 3: Cross multiply
    67,020.53x = 100,377.68 × 31,984.79
  4. Step 4: Simplify right side
    67,020.53x = 3,210,558,353.67
  5. Step 5: Solve for x
    x = 3,210,558,353.67/67,020.53
  6. Step 6: Final answer
    x = 47,904.11

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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.