Home / 45,489.72-68,225.16-12,201.87

Finding the Fourth Proportional to 45,489.72, 68,225.16 and 12,201.87

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Solution

The fourth proportional to 45,489.72, 68,225.16 and 12,201.87 is: 18,300.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,489.72 : 68,225.16 = 12,201.87 : x
  2. Step 2: Convert to fraction form
    45,489.72/68,225.16 = 12,201.87/x
  3. Step 3: Cross multiply
    45,489.72x = 68,225.16 × 12,201.87
  4. Step 4: Simplify right side
    45,489.72x = 832,474,533.05
  5. Step 5: Solve for x
    x = 832,474,533.05/45,489.72
  6. Step 6: Final answer
    x = 18,300.28

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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.