Home / 54,971.61-82,448.89-21,232.78

Finding the Fourth Proportional to 54,971.61, 82,448.89 and 21,232.78

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Solution

The fourth proportional to 54,971.61, 82,448.89 and 21,232.78 is: 31,845.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,971.61 : 82,448.89 = 21,232.78 : x
  2. Step 2: Convert to fraction form
    54,971.61/82,448.89 = 21,232.78/x
  3. Step 3: Cross multiply
    54,971.61x = 82,448.89 × 21,232.78
  4. Step 4: Simplify right side
    54,971.61x = 1,750,619,347.19
  5. Step 5: Solve for x
    x = 1,750,619,347.19/54,971.61
  6. Step 6: Final answer
    x = 31,845.88

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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.