Home / 89,739.20-123,839.52-49,453.28

Finding the Fourth Proportional to 89,739.20, 123,839.52 and 49,453.28

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Solution

The fourth proportional to 89,739.20, 123,839.52 and 49,453.28 is: 68,245.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,739.20 : 123,839.52 = 49,453.28 : x
  2. Step 2: Convert to fraction form
    89,739.20/123,839.52 = 49,453.28/x
  3. Step 3: Cross multiply
    89,739.20x = 123,839.52 × 49,453.28
  4. Step 4: Simplify right side
    89,739.20x = 6,124,270,457.63
  5. Step 5: Solve for x
    x = 6,124,270,457.63/89,739.20
  6. Step 6: Final answer
    x = 68,245.21

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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.