Home / 54,881.98-82,313.41-15,429.72

Finding the Fourth Proportional to 54,881.98, 82,313.41 and 15,429.72

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Solution

The fourth proportional to 54,881.98, 82,313.41 and 15,429.72 is: 23,141.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,881.98 : 82,313.41 = 15,429.72 : x
  2. Step 2: Convert to fraction form
    54,881.98/82,313.41 = 15,429.72/x
  3. Step 3: Cross multiply
    54,881.98x = 82,313.41 × 15,429.72
  4. Step 4: Simplify right side
    54,881.98x = 1,270,072,868.55
  5. Step 5: Solve for x
    x = 1,270,072,868.55/54,881.98
  6. Step 6: Final answer
    x = 23,141.89

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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.