Home / 85,183.19-127,677.92-51,829.75

Finding the Fourth Proportional to 85,183.19, 127,677.92 and 51,829.75

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Solution

The fourth proportional to 85,183.19, 127,677.92 and 51,829.75 is: 77,685.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,183.19 : 127,677.92 = 51,829.75 : x
  2. Step 2: Convert to fraction form
    85,183.19/127,677.92 = 51,829.75/x
  3. Step 3: Cross multiply
    85,183.19x = 127,677.92 × 51,829.75
  4. Step 4: Simplify right side
    85,183.19x = 6,617,514,095.78
  5. Step 5: Solve for x
    x = 6,617,514,095.78/85,183.19
  6. Step 6: Final answer
    x = 77,685.69

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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.