Home / 30,801.78-45,979.85-27,065.09

Finding the Fourth Proportional to 30,801.78, 45,979.85 and 27,065.09

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Solution

The fourth proportional to 30,801.78, 45,979.85 and 27,065.09 is: 40,401.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,801.78 : 45,979.85 = 27,065.09 : x
  2. Step 2: Convert to fraction form
    30,801.78/45,979.85 = 27,065.09/x
  3. Step 3: Cross multiply
    30,801.78x = 45,979.85 × 27,065.09
  4. Step 4: Simplify right side
    30,801.78x = 1,244,448,961.05
  5. Step 5: Solve for x
    x = 1,244,448,961.05/30,801.78
  6. Step 6: Final answer
    x = 40,401.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.