Home / 54,913.36-82,389.66-21,615.04

Finding the Fourth Proportional to 54,913.36, 82,389.66 and 21,615.04

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Solution

The fourth proportional to 54,913.36, 82,389.66 and 21,615.04 is: 32,430.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,913.36 : 82,389.66 = 21,615.04 : x
  2. Step 2: Convert to fraction form
    54,913.36/82,389.66 = 21,615.04/x
  3. Step 3: Cross multiply
    54,913.36x = 82,389.66 × 21,615.04
  4. Step 4: Simplify right side
    54,913.36x = 1,780,855,796.49
  5. Step 5: Solve for x
    x = 1,780,855,796.49/54,913.36
  6. Step 6: Final answer
    x = 32,430.28

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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.