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Finding the Fourth Proportional to 68,854.02, 94,399.70 and 67,609.86

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Solution

The fourth proportional to 68,854.02, 94,399.70 and 67,609.86 is: 92,693.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,854.02 : 94,399.70 = 67,609.86 : x
  2. Step 2: Convert to fraction form
    68,854.02/94,399.70 = 67,609.86/x
  3. Step 3: Cross multiply
    68,854.02x = 94,399.70 × 67,609.86
  4. Step 4: Simplify right side
    68,854.02x = 6,382,350,162.99
  5. Step 5: Solve for x
    x = 6,382,350,162.99/68,854.02
  6. Step 6: Final answer
    x = 92,693.94

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.