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Finding the Fourth Proportional to 68,325.72, 102,634.26 and 64,330.80

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Solution

The fourth proportional to 68,325.72, 102,634.26 and 64,330.80 is: 96,633.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,325.72 : 102,634.26 = 64,330.80 : x
  2. Step 2: Convert to fraction form
    68,325.72/102,634.26 = 64,330.80/x
  3. Step 3: Cross multiply
    68,325.72x = 102,634.26 × 64,330.80
  4. Step 4: Simplify right side
    68,325.72x = 6,602,544,053.21
  5. Step 5: Solve for x
    x = 6,602,544,053.21/68,325.72
  6. Step 6: Final answer
    x = 96,633.36

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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.