Home / 54,410.33-81,599.10-21,122.98

Finding the Fourth Proportional to 54,410.33, 81,599.10 and 21,122.98

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Solution

The fourth proportional to 54,410.33, 81,599.10 and 21,122.98 is: 31,678.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,410.33 : 81,599.10 = 21,122.98 : x
  2. Step 2: Convert to fraction form
    54,410.33/81,599.10 = 21,122.98/x
  3. Step 3: Cross multiply
    54,410.33x = 81,599.10 × 21,122.98
  4. Step 4: Simplify right side
    54,410.33x = 1,723,615,874.11
  5. Step 5: Solve for x
    x = 1,723,615,874.11/54,410.33
  6. Step 6: Final answer
    x = 31,678.10

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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.