Home / 45,161.55-67,731.39-21,458.57

Finding the Fourth Proportional to 45,161.55, 67,731.39 and 21,458.57

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Solution

The fourth proportional to 45,161.55, 67,731.39 and 21,458.57 is: 32,182.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,161.55 : 67,731.39 = 21,458.57 : x
  2. Step 2: Convert to fraction form
    45,161.55/67,731.39 = 21,458.57/x
  3. Step 3: Cross multiply
    45,161.55x = 67,731.39 × 21,458.57
  4. Step 4: Simplify right side
    45,161.55x = 1,453,418,815.84
  5. Step 5: Solve for x
    x = 1,453,418,815.84/45,161.55
  6. Step 6: Final answer
    x = 32,182.66

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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.