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Finding the Fourth Proportional to 68,565.58, 102,879.05 and 43,599.15

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Solution

The fourth proportional to 68,565.58, 102,879.05 and 43,599.15 is: 65,418.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,565.58 : 102,879.05 = 43,599.15 : x
  2. Step 2: Convert to fraction form
    68,565.58/102,879.05 = 43,599.15/x
  3. Step 3: Cross multiply
    68,565.58x = 102,879.05 × 43,599.15
  4. Step 4: Simplify right side
    68,565.58x = 4,485,438,914.81
  5. Step 5: Solve for x
    x = 4,485,438,914.81/68,565.58
  6. Step 6: Final answer
    x = 65,418.23

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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.