Home / 54,465.21-81,678.24-19,397.88

Finding the Fourth Proportional to 54,465.21, 81,678.24 and 19,397.88

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Solution

The fourth proportional to 54,465.21, 81,678.24 and 19,397.88 is: 29,089.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,465.21 : 81,678.24 = 19,397.88 : x
  2. Step 2: Convert to fraction form
    54,465.21/81,678.24 = 19,397.88/x
  3. Step 3: Cross multiply
    54,465.21x = 81,678.24 × 19,397.88
  4. Step 4: Simplify right side
    54,465.21x = 1,584,384,698.13
  5. Step 5: Solve for x
    x = 1,584,384,698.13/54,465.21
  6. Step 6: Final answer
    x = 29,089.85

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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.