Home / 54,366.03-81,569.80-21,109.44

Finding the Fourth Proportional to 54,366.03, 81,569.80 and 21,109.44

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Solution

The fourth proportional to 54,366.03, 81,569.80 and 21,109.44 is: 31,672.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,366.03 : 81,569.80 = 21,109.44 : x
  2. Step 2: Convert to fraction form
    54,366.03/81,569.80 = 21,109.44/x
  3. Step 3: Cross multiply
    54,366.03x = 81,569.80 × 21,109.44
  4. Step 4: Simplify right side
    54,366.03x = 1,721,892,798.91
  5. Step 5: Solve for x
    x = 1,721,892,798.91/54,366.03
  6. Step 6: Final answer
    x = 31,672.22

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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.