Home / 80,029.09-120,118.98-40,614.49

Finding the Fourth Proportional to 80,029.09, 120,118.98 and 40,614.49

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Solution

The fourth proportional to 80,029.09, 120,118.98 and 40,614.49 is: 60,959.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,029.09 : 120,118.98 = 40,614.49 : x
  2. Step 2: Convert to fraction form
    80,029.09/120,118.98 = 40,614.49/x
  3. Step 3: Cross multiply
    80,029.09x = 120,118.98 × 40,614.49
  4. Step 4: Simplify right side
    80,029.09x = 4,878,571,112.02
  5. Step 5: Solve for x
    x = 4,878,571,112.02/80,029.09
  6. Step 6: Final answer
    x = 60,959.97

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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.