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Finding the Fourth Proportional to 69,672.96, 96,145.48 and 39,458.50

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Solution

The fourth proportional to 69,672.96, 96,145.48 and 39,458.50 is: 54,450.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,672.96 : 96,145.48 = 39,458.50 : x
  2. Step 2: Convert to fraction form
    69,672.96/96,145.48 = 39,458.50/x
  3. Step 3: Cross multiply
    69,672.96x = 96,145.48 × 39,458.50
  4. Step 4: Simplify right side
    69,672.96x = 3,793,756,422.58
  5. Step 5: Solve for x
    x = 3,793,756,422.58/69,672.96
  6. Step 6: Final answer
    x = 54,450.91

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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.