Home / 54,368.82-81,531.36-21,071.34

Finding the Fourth Proportional to 54,368.82, 81,531.36 and 21,071.34

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Solution

The fourth proportional to 54,368.82, 81,531.36 and 21,071.34 is: 31,598.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,368.82 : 81,531.36 = 21,071.34 : x
  2. Step 2: Convert to fraction form
    54,368.82/81,531.36 = 21,071.34/x
  3. Step 3: Cross multiply
    54,368.82x = 81,531.36 × 21,071.34
  4. Step 4: Simplify right side
    54,368.82x = 1,717,975,007.22
  5. Step 5: Solve for x
    x = 1,717,975,007.22/54,368.82
  6. Step 6: Final answer
    x = 31,598.53

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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.