Home / 54,463.14-81,699.76-21,185.74

Finding the Fourth Proportional to 54,463.14, 81,699.76 and 21,185.74

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Solution

The fourth proportional to 54,463.14, 81,699.76 and 21,185.74 is: 31,780.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,463.14 : 81,699.76 = 21,185.74 : x
  2. Step 2: Convert to fraction form
    54,463.14/81,699.76 = 21,185.74/x
  3. Step 3: Cross multiply
    54,463.14x = 81,699.76 × 21,185.74
  4. Step 4: Simplify right side
    54,463.14x = 1,730,869,873.42
  5. Step 5: Solve for x
    x = 1,730,869,873.42/54,463.14
  6. Step 6: Final answer
    x = 31,780.57

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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.