Home / 79,030.92-109,029.57-51,813.53

Finding the Fourth Proportional to 79,030.92, 109,029.57 and 51,813.53

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Solution

The fourth proportional to 79,030.92, 109,029.57 and 51,813.53 is: 71,480.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,030.92 : 109,029.57 = 51,813.53 : x
  2. Step 2: Convert to fraction form
    79,030.92/109,029.57 = 51,813.53/x
  3. Step 3: Cross multiply
    79,030.92x = 109,029.57 × 51,813.53
  4. Step 4: Simplify right side
    79,030.92x = 5,649,207,017.87
  5. Step 5: Solve for x
    x = 5,649,207,017.87/79,030.92
  6. Step 6: Final answer
    x = 71,480.97

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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.