Home / 48,690.80-72,992.12-19,100.69

Finding the Fourth Proportional to 48,690.80, 72,992.12 and 19,100.69

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Solution

The fourth proportional to 48,690.80, 72,992.12 and 19,100.69 is: 28,633.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,690.80 : 72,992.12 = 19,100.69 : x
  2. Step 2: Convert to fraction form
    48,690.80/72,992.12 = 19,100.69/x
  3. Step 3: Cross multiply
    48,690.80x = 72,992.12 × 19,100.69
  4. Step 4: Simplify right side
    48,690.80x = 1,394,200,178.03
  5. Step 5: Solve for x
    x = 1,394,200,178.03/48,690.80
  6. Step 6: Final answer
    x = 28,633.75

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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.