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Finding the Fourth Proportional to 69,609.54, 96,059.80 and 39,394.30

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Solution

The fourth proportional to 69,609.54, 96,059.80 and 39,394.30 is: 54,363.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,609.54 : 96,059.80 = 39,394.30 : x
  2. Step 2: Convert to fraction form
    69,609.54/96,059.80 = 39,394.30/x
  3. Step 3: Cross multiply
    69,609.54x = 96,059.80 × 39,394.30
  4. Step 4: Simplify right side
    69,609.54x = 3,784,208,579.14
  5. Step 5: Solve for x
    x = 3,784,208,579.14/69,609.54
  6. Step 6: Final answer
    x = 54,363.36

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1.5x scale

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.