Home / 68,861.14-103,292.15-18,946.51

Finding the Fourth Proportional to 68,861.14, 103,292.15 and 18,946.51

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Solution

The fourth proportional to 68,861.14, 103,292.15 and 18,946.51 is: 28,419.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,861.14 : 103,292.15 = 18,946.51 : x
  2. Step 2: Convert to fraction form
    68,861.14/103,292.15 = 18,946.51/x
  3. Step 3: Cross multiply
    68,861.14x = 103,292.15 × 18,946.51
  4. Step 4: Simplify right side
    68,861.14x = 1,957,025,399.93
  5. Step 5: Solve for x
    x = 1,957,025,399.93/68,861.14
  6. Step 6: Final answer
    x = 28,419.88

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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.