Home / 67,084.56-100,623.60-19,697.68

Finding the Fourth Proportional to 67,084.56, 100,623.60 and 19,697.68

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Solution

The fourth proportional to 67,084.56, 100,623.60 and 19,697.68 is: 29,545.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,084.56 : 100,623.60 = 19,697.68 : x
  2. Step 2: Convert to fraction form
    67,084.56/100,623.60 = 19,697.68/x
  3. Step 3: Cross multiply
    67,084.56x = 100,623.60 × 19,697.68
  4. Step 4: Simplify right side
    67,084.56x = 1,982,051,473.25
  5. Step 5: Solve for x
    x = 1,982,051,473.25/67,084.56
  6. Step 6: Final answer
    x = 29,545.57

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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.