Home / 54,426.80-81,611.88-19,361.36

Finding the Fourth Proportional to 54,426.80, 81,611.88 and 19,361.36

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Solution

The fourth proportional to 54,426.80, 81,611.88 and 19,361.36 is: 29,031.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,426.80 : 81,611.88 = 19,361.36 : x
  2. Step 2: Convert to fraction form
    54,426.80/81,611.88 = 19,361.36/x
  3. Step 3: Cross multiply
    54,426.80x = 81,611.88 × 19,361.36
  4. Step 4: Simplify right side
    54,426.80x = 1,580,116,988.96
  5. Step 5: Solve for x
    x = 1,580,116,988.96/54,426.80
  6. Step 6: Final answer
    x = 29,031.97

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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.