Home / 54,678.72-82,008.78-15,239.76

Finding the Fourth Proportional to 54,678.72, 82,008.78 and 15,239.76

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Solution

The fourth proportional to 54,678.72, 82,008.78 and 15,239.76 is: 22,857.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,678.72 : 82,008.78 = 15,239.76 : x
  2. Step 2: Convert to fraction form
    54,678.72/82,008.78 = 15,239.76/x
  3. Step 3: Cross multiply
    54,678.72x = 82,008.78 × 15,239.76
  4. Step 4: Simplify right side
    54,678.72x = 1,249,794,125.09
  5. Step 5: Solve for x
    x = 1,249,794,125.09/54,678.72
  6. Step 6: Final answer
    x = 22,857.05

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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.