Home / 54,987.72-82,502.64-23,405.28

Finding the Fourth Proportional to 54,987.72, 82,502.64 and 23,405.28

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Solution

The fourth proportional to 54,987.72, 82,502.64 and 23,405.28 is: 35,116.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,987.72 : 82,502.64 = 23,405.28 : x
  2. Step 2: Convert to fraction form
    54,987.72/82,502.64 = 23,405.28/x
  3. Step 3: Cross multiply
    54,987.72x = 82,502.64 × 23,405.28
  4. Step 4: Simplify right side
    54,987.72x = 1,930,997,389.94
  5. Step 5: Solve for x
    x = 1,930,997,389.94/54,987.72
  6. Step 6: Final answer
    x = 35,116.88

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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.