Home / 68,861.23-103,292.30-18,946.60

Finding the Fourth Proportional to 68,861.23, 103,292.30 and 18,946.60

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Solution

The fourth proportional to 68,861.23, 103,292.30 and 18,946.60 is: 28,420.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,861.23 : 103,292.30 = 18,946.60 : x
  2. Step 2: Convert to fraction form
    68,861.23/103,292.30 = 18,946.60/x
  3. Step 3: Cross multiply
    68,861.23x = 103,292.30 × 18,946.60
  4. Step 4: Simplify right side
    68,861.23x = 1,957,037,891.18
  5. Step 5: Solve for x
    x = 1,957,037,891.18/68,861.23
  6. Step 6: Final answer
    x = 28,420.03

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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.