Home / 71,141.78-98,174.49-39,312.02

Finding the Fourth Proportional to 71,141.78, 98,174.49 and 39,312.02

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Solution

The fourth proportional to 71,141.78, 98,174.49 and 39,312.02 is: 54,249.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,141.78 : 98,174.49 = 39,312.02 : x
  2. Step 2: Convert to fraction form
    71,141.78/98,174.49 = 39,312.02/x
  3. Step 3: Cross multiply
    71,141.78x = 98,174.49 × 39,312.02
  4. Step 4: Simplify right side
    71,141.78x = 3,859,437,514.37
  5. Step 5: Solve for x
    x = 3,859,437,514.37/71,141.78
  6. Step 6: Final answer
    x = 54,249.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.