Home / 54,347.24-81,539.09-21,068.39

Finding the Fourth Proportional to 54,347.24, 81,539.09 and 21,068.39

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Solution

The fourth proportional to 54,347.24, 81,539.09 and 21,068.39 is: 31,609.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,347.24 : 81,539.09 = 21,068.39 : x
  2. Step 2: Convert to fraction form
    54,347.24/81,539.09 = 21,068.39/x
  3. Step 3: Cross multiply
    54,347.24x = 81,539.09 × 21,068.39
  4. Step 4: Simplify right side
    54,347.24x = 1,717,896,835.33
  5. Step 5: Solve for x
    x = 1,717,896,835.33/54,347.24
  6. Step 6: Final answer
    x = 31,609.65

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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.