Home / 54,277.57-81,369.26-21,021.81

Finding the Fourth Proportional to 54,277.57, 81,369.26 and 21,021.81

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Solution

The fourth proportional to 54,277.57, 81,369.26 and 21,021.81 is: 31,514.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,277.57 : 81,369.26 = 21,021.81 : x
  2. Step 2: Convert to fraction form
    54,277.57/81,369.26 = 21,021.81/x
  3. Step 3: Cross multiply
    54,277.57x = 81,369.26 × 21,021.81
  4. Step 4: Simplify right side
    54,277.57x = 1,710,528,611.61
  5. Step 5: Solve for x
    x = 1,710,528,611.61/54,277.57
  6. Step 6: Final answer
    x = 31,514.47

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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.