Home / 68,320.72-94,279.68-50,409.28

Finding the Fourth Proportional to 68,320.72, 94,279.68 and 50,409.28

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Solution

The fourth proportional to 68,320.72, 94,279.68 and 50,409.28 is: 69,562.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,320.72 : 94,279.68 = 50,409.28 : x
  2. Step 2: Convert to fraction form
    68,320.72/94,279.68 = 50,409.28/x
  3. Step 3: Cross multiply
    68,320.72x = 94,279.68 × 50,409.28
  4. Step 4: Simplify right side
    68,320.72x = 4,752,570,787.43
  5. Step 5: Solve for x
    x = 4,752,570,787.43/68,320.72
  6. Step 6: Final answer
    x = 69,562.66

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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.