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Finding the Fourth Proportional to 69,919.80, 96,525.09 and 47,377.92

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Solution

The fourth proportional to 69,919.80, 96,525.09 and 47,377.92 is: 65,405.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,919.80 : 96,525.09 = 47,377.92 : x
  2. Step 2: Convert to fraction form
    69,919.80/96,525.09 = 47,377.92/x
  3. Step 3: Cross multiply
    69,919.80x = 96,525.09 × 47,377.92
  4. Step 4: Simplify right side
    69,919.80x = 4,573,157,992.01
  5. Step 5: Solve for x
    x = 4,573,157,992.01/69,919.80
  6. Step 6: Final answer
    x = 65,405.76

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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.