Home / 52,836.81-79,260.12-19,111.28

Finding the Fourth Proportional to 52,836.81, 79,260.12 and 19,111.28

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Solution

The fourth proportional to 52,836.81, 79,260.12 and 19,111.28 is: 28,668.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,836.81 : 79,260.12 = 19,111.28 : x
  2. Step 2: Convert to fraction form
    52,836.81/79,260.12 = 19,111.28/x
  3. Step 3: Cross multiply
    52,836.81x = 79,260.12 × 19,111.28
  4. Step 4: Simplify right side
    52,836.81x = 1,514,761,949.85
  5. Step 5: Solve for x
    x = 1,514,761,949.85/52,836.81
  6. Step 6: Final answer
    x = 28,668.69

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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.