Home / 68,921.32-103,364.70-50,419.24

Finding the Fourth Proportional to 68,921.32, 103,364.70 and 50,419.24

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Solution

The fourth proportional to 68,921.32, 103,364.70 and 50,419.24 is: 75,616.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,921.32 : 103,364.70 = 50,419.24 : x
  2. Step 2: Convert to fraction form
    68,921.32/103,364.70 = 50,419.24/x
  3. Step 3: Cross multiply
    68,921.32x = 103,364.70 × 50,419.24
  4. Step 4: Simplify right side
    68,921.32x = 5,211,569,616.83
  5. Step 5: Solve for x
    x = 5,211,569,616.83/68,921.32
  6. Step 6: Final answer
    x = 75,616.22

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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.