Home / 54,871.36-82,307.04-13,318.08

Finding the Fourth Proportional to 54,871.36, 82,307.04 and 13,318.08

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Solution

The fourth proportional to 54,871.36, 82,307.04 and 13,318.08 is: 19,977.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,871.36 : 82,307.04 = 13,318.08 : x
  2. Step 2: Convert to fraction form
    54,871.36/82,307.04 = 13,318.08/x
  3. Step 3: Cross multiply
    54,871.36x = 82,307.04 × 13,318.08
  4. Step 4: Simplify right side
    54,871.36x = 1,096,171,743.28
  5. Step 5: Solve for x
    x = 1,096,171,743.28/54,871.36
  6. Step 6: Final answer
    x = 19,977.12

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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.