Home / 54,346.98-81,538.71-21,068.13

Finding the Fourth Proportional to 54,346.98, 81,538.71 and 21,068.13

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Solution

The fourth proportional to 54,346.98, 81,538.71 and 21,068.13 is: 31,609.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,346.98 : 81,538.71 = 21,068.13 : x
  2. Step 2: Convert to fraction form
    54,346.98/81,538.71 = 21,068.13/x
  3. Step 3: Cross multiply
    54,346.98x = 81,538.71 × 21,068.13
  4. Step 4: Simplify right side
    54,346.98x = 1,717,868,142.31
  5. Step 5: Solve for x
    x = 1,717,868,142.31/54,346.98
  6. Step 6: Final answer
    x = 31,609.27

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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.