Home / 68,247.02-102,370.79-20,861.93

Finding the Fourth Proportional to 68,247.02, 102,370.79 and 20,861.93

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Solution

The fourth proportional to 68,247.02, 102,370.79 and 20,861.93 is: 31,292.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,247.02 : 102,370.79 = 20,861.93 : x
  2. Step 2: Convert to fraction form
    68,247.02/102,370.79 = 20,861.93/x
  3. Step 3: Cross multiply
    68,247.02x = 102,370.79 × 20,861.93
  4. Step 4: Simplify right side
    68,247.02x = 2,135,651,638.86
  5. Step 5: Solve for x
    x = 2,135,651,638.86/68,247.02
  6. Step 6: Final answer
    x = 31,292.97

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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.