Home / 45,101.18-67,652.23-20,142.50

Finding the Fourth Proportional to 45,101.18, 67,652.23 and 20,142.50

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Solution

The fourth proportional to 45,101.18, 67,652.23 and 20,142.50 is: 30,213.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,101.18 : 67,652.23 = 20,142.50 : x
  2. Step 2: Convert to fraction form
    45,101.18/67,652.23 = 20,142.50/x
  3. Step 3: Cross multiply
    45,101.18x = 67,652.23 × 20,142.50
  4. Step 4: Simplify right side
    45,101.18x = 1,362,685,042.78
  5. Step 5: Solve for x
    x = 1,362,685,042.78/45,101.18
  6. Step 6: Final answer
    x = 30,213.96

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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.