Home / 105,481.30-145,564.50-57,735.04

Finding the Fourth Proportional to 105,481.30, 145,564.50 and 57,735.04

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Solution

The fourth proportional to 105,481.30, 145,564.50 and 57,735.04 is: 79,674.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,481.30 : 145,564.50 = 57,735.04 : x
  2. Step 2: Convert to fraction form
    105,481.30/145,564.50 = 57,735.04/x
  3. Step 3: Cross multiply
    105,481.30x = 145,564.50 × 57,735.04
  4. Step 4: Simplify right side
    105,481.30x = 8,404,172,230.08
  5. Step 5: Solve for x
    x = 8,404,172,230.08/105,481.30
  6. Step 6: Final answer
    x = 79,674.52

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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.