Home / 45,166.05-67,721.72-20,201.45

Finding the Fourth Proportional to 45,166.05, 67,721.72 and 20,201.45

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Solution

The fourth proportional to 45,166.05, 67,721.72 and 20,201.45 is: 30,289.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,166.05 : 67,721.72 = 20,201.45 : x
  2. Step 2: Convert to fraction form
    45,166.05/67,721.72 = 20,201.45/x
  3. Step 3: Cross multiply
    45,166.05x = 67,721.72 × 20,201.45
  4. Step 4: Simplify right side
    45,166.05x = 1,368,076,500.88
  5. Step 5: Solve for x
    x = 1,368,076,500.88/45,166.05
  6. Step 6: Final answer
    x = 30,289.93

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1.5x scale

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.