Home / 54,655.79-81,994.07-19,127.21

Finding the Fourth Proportional to 54,655.79, 81,994.07 and 19,127.21

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Solution

The fourth proportional to 54,655.79, 81,994.07 and 19,127.21 is: 28,694.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,655.79 : 81,994.07 = 19,127.21 : x
  2. Step 2: Convert to fraction form
    54,655.79/81,994.07 = 19,127.21/x
  3. Step 3: Cross multiply
    54,655.79x = 81,994.07 × 19,127.21
  4. Step 4: Simplify right side
    54,655.79x = 1,568,317,700.01
  5. Step 5: Solve for x
    x = 1,568,317,700.01/54,655.79
  6. Step 6: Final answer
    x = 28,694.45

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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.