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Finding the Fourth Proportional to 69,825.63, 96,342.96 and 39,603.99

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Solution

The fourth proportional to 69,825.63, 96,342.96 and 39,603.99 is: 54,644.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,825.63 : 96,342.96 = 39,603.99 : x
  2. Step 2: Convert to fraction form
    69,825.63/96,342.96 = 39,603.99/x
  3. Step 3: Cross multiply
    69,825.63x = 96,342.96 × 39,603.99
  4. Step 4: Simplify right side
    69,825.63x = 3,815,565,624.41
  5. Step 5: Solve for x
    x = 3,815,565,624.41/69,825.63
  6. Step 6: Final answer
    x = 54,644.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.