Home / 68,942.01-95,129.61-38,721.54

Finding the Fourth Proportional to 68,942.01, 95,129.61 and 38,721.54

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Solution

The fourth proportional to 68,942.01, 95,129.61 and 38,721.54 is: 53,429.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,942.01 : 95,129.61 = 38,721.54 : x
  2. Step 2: Convert to fraction form
    68,942.01/95,129.61 = 38,721.54/x
  3. Step 3: Cross multiply
    68,942.01x = 95,129.61 × 38,721.54
  4. Step 4: Simplify right side
    68,942.01x = 3,683,565,537.04
  5. Step 5: Solve for x
    x = 3,683,565,537.04/68,942.01
  6. Step 6: Final answer
    x = 53,429.91

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1.5x scale

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.