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Finding the Fourth Proportional to 72,029.80, 108,012.30 and 27,641.80

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Solution

The fourth proportional to 72,029.80, 108,012.30 and 27,641.80 is: 41,450.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,029.80 : 108,012.30 = 27,641.80 : x
  2. Step 2: Convert to fraction form
    72,029.80/108,012.30 = 27,641.80/x
  3. Step 3: Cross multiply
    72,029.80x = 108,012.30 × 27,641.80
  4. Step 4: Simplify right side
    72,029.80x = 2,985,654,394.14
  5. Step 5: Solve for x
    x = 2,985,654,394.14/72,029.80
  6. Step 6: Final answer
    x = 41,450.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.