Home / 40,107.72-55,389.78-33,869.64

Finding the Fourth Proportional to 40,107.72, 55,389.78 and 33,869.64

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Solution

The fourth proportional to 40,107.72, 55,389.78 and 33,869.64 is: 46,774.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,107.72 : 55,389.78 = 33,869.64 : x
  2. Step 2: Convert to fraction form
    40,107.72/55,389.78 = 33,869.64/x
  3. Step 3: Cross multiply
    40,107.72x = 55,389.78 × 33,869.64
  4. Step 4: Simplify right side
    40,107.72x = 1,876,031,908.28
  5. Step 5: Solve for x
    x = 1,876,031,908.28/40,107.72
  6. Step 6: Final answer
    x = 46,774.83

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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.