Home / 48,679.13-72,987.31-19,099.96

Finding the Fourth Proportional to 48,679.13, 72,987.31 and 19,099.96

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Solution

The fourth proportional to 48,679.13, 72,987.31 and 19,099.96 is: 28,637.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,679.13 : 72,987.31 = 19,099.96 : x
  2. Step 2: Convert to fraction form
    48,679.13/72,987.31 = 19,099.96/x
  3. Step 3: Cross multiply
    48,679.13x = 72,987.31 × 19,099.96
  4. Step 4: Simplify right side
    48,679.13x = 1,394,054,471.29
  5. Step 5: Solve for x
    x = 1,394,054,471.29/48,679.13
  6. Step 6: Final answer
    x = 28,637.62

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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.