Home / 54,405.20-81,639-24,415.92

Finding the Fourth Proportional to 54,405.20, 81,639 and 24,415.92

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Solution

The fourth proportional to 54,405.20, 81,639 and 24,415.92 is: 36,637.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,405.20 : 81,639 = 24,415.92 : x
  2. Step 2: Convert to fraction form
    54,405.20/81,639 = 24,415.92/x
  3. Step 3: Cross multiply
    54,405.20x = 81,639 × 24,415.92
  4. Step 4: Simplify right side
    54,405.20x = 1,993,291,292.88
  5. Step 5: Solve for x
    x = 1,993,291,292.88/54,405.20
  6. Step 6: Final answer
    x = 36,637.88

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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.