Home / 77,079.85-106,387.97-50,175.50

Finding the Fourth Proportional to 77,079.85, 106,387.97 and 50,175.50

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Solution

The fourth proportional to 77,079.85, 106,387.97 and 50,175.50 is: 69,253.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,079.85 : 106,387.97 = 50,175.50 : x
  2. Step 2: Convert to fraction form
    77,079.85/106,387.97 = 50,175.50/x
  3. Step 3: Cross multiply
    77,079.85x = 106,387.97 × 50,175.50
  4. Step 4: Simplify right side
    77,079.85x = 5,338,068,805.92
  5. Step 5: Solve for x
    x = 5,338,068,805.92/77,079.85
  6. Step 6: Final answer
    x = 69,253.75

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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.