Home / 45,347.78-68,021.56-12,067.84

Finding the Fourth Proportional to 45,347.78, 68,021.56 and 12,067.84

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Solution

The fourth proportional to 45,347.78, 68,021.56 and 12,067.84 is: 18,101.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,347.78 : 68,021.56 = 12,067.84 : x
  2. Step 2: Convert to fraction form
    45,347.78/68,021.56 = 12,067.84/x
  3. Step 3: Cross multiply
    45,347.78x = 68,021.56 × 12,067.84
  4. Step 4: Simplify right side
    45,347.78x = 820,873,302.63
  5. Step 5: Solve for x
    x = 820,873,302.63/45,347.78
  6. Step 6: Final answer
    x = 18,101.73

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1.5x scale

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.