Home / 45,258.53-67,889.61-21,553.88

Finding the Fourth Proportional to 45,258.53, 67,889.61 and 21,553.88

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Solution

The fourth proportional to 45,258.53, 67,889.61 and 21,553.88 is: 32,331.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,258.53 : 67,889.61 = 21,553.88 : x
  2. Step 2: Convert to fraction form
    45,258.53/67,889.61 = 21,553.88/x
  3. Step 3: Cross multiply
    45,258.53x = 67,889.61 × 21,553.88
  4. Step 4: Simplify right side
    45,258.53x = 1,463,284,167.74
  5. Step 5: Solve for x
    x = 1,463,284,167.74/45,258.53
  6. Step 6: Final answer
    x = 32,331.68

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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.