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Finding the Fourth Proportional to 69,815.62, 96,403.73 and 64,750.33

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Solution

The fourth proportional to 69,815.62, 96,403.73 and 64,750.33 is: 89,409.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,815.62 : 96,403.73 = 64,750.33 : x
  2. Step 2: Convert to fraction form
    69,815.62/96,403.73 = 64,750.33/x
  3. Step 3: Cross multiply
    69,815.62x = 96,403.73 × 64,750.33
  4. Step 4: Simplify right side
    69,815.62x = 6,242,173,330.73
  5. Step 5: Solve for x
    x = 6,242,173,330.73/69,815.62
  6. Step 6: Final answer
    x = 89,409.41

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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.