Home / 45,120.84-67,638.69-15,517.98

Finding the Fourth Proportional to 45,120.84, 67,638.69 and 15,517.98

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Solution

The fourth proportional to 45,120.84, 67,638.69 and 15,517.98 is: 23,262.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,120.84 : 67,638.69 = 15,517.98 : x
  2. Step 2: Convert to fraction form
    45,120.84/67,638.69 = 15,517.98/x
  3. Step 3: Cross multiply
    45,120.84x = 67,638.69 × 15,517.98
  4. Step 4: Simplify right side
    45,120.84x = 1,049,615,838.65
  5. Step 5: Solve for x
    x = 1,049,615,838.65/45,120.84
  6. Step 6: Final answer
    x = 23,262.33

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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.