Home / 45,129.97-67,733.84-21,776.05

Finding the Fourth Proportional to 45,129.97, 67,733.84 and 21,776.05

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Solution

The fourth proportional to 45,129.97, 67,733.84 and 21,776.05 is: 32,682.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,129.97 : 67,733.84 = 21,776.05 : x
  2. Step 2: Convert to fraction form
    45,129.97/67,733.84 = 21,776.05/x
  3. Step 3: Cross multiply
    45,129.97x = 67,733.84 × 21,776.05
  4. Step 4: Simplify right side
    45,129.97x = 1,474,975,377.65
  5. Step 5: Solve for x
    x = 1,474,975,377.65/45,129.97
  6. Step 6: Final answer
    x = 32,682.84

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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.