Home / 79,254.05-109,381.77-49,049.10

Finding the Fourth Proportional to 79,254.05, 109,381.77 and 49,049.10

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Solution

The fourth proportional to 79,254.05, 109,381.77 and 49,049.10 is: 67,694.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,254.05 : 109,381.77 = 49,049.10 : x
  2. Step 2: Convert to fraction form
    79,254.05/109,381.77 = 49,049.10/x
  3. Step 3: Cross multiply
    79,254.05x = 109,381.77 × 49,049.10
  4. Step 4: Simplify right side
    79,254.05x = 5,365,077,374.91
  5. Step 5: Solve for x
    x = 5,365,077,374.91/79,254.05
  6. Step 6: Final answer
    x = 67,694.68

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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.