Home / 54,385.62-81,608.14-21,106.98

Finding the Fourth Proportional to 54,385.62, 81,608.14 and 21,106.98

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Solution

The fourth proportional to 54,385.62, 81,608.14 and 21,106.98 is: 31,672.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,385.62 : 81,608.14 = 21,106.98 : x
  2. Step 2: Convert to fraction form
    54,385.62/81,608.14 = 21,106.98/x
  3. Step 3: Cross multiply
    54,385.62x = 81,608.14 × 21,106.98
  4. Step 4: Simplify right side
    54,385.62x = 1,722,501,378.82
  5. Step 5: Solve for x
    x = 1,722,501,378.82/54,385.62
  6. Step 6: Final answer
    x = 31,672.00

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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.