Home / 89,418.06-123,389.73-51,694.74

Finding the Fourth Proportional to 89,418.06, 123,389.73 and 51,694.74

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Solution

The fourth proportional to 89,418.06, 123,389.73 and 51,694.74 is: 71,334.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,418.06 : 123,389.73 = 51,694.74 : x
  2. Step 2: Convert to fraction form
    89,418.06/123,389.73 = 51,694.74/x
  3. Step 3: Cross multiply
    89,418.06x = 123,389.73 × 51,694.74
  4. Step 4: Simplify right side
    89,418.06x = 6,378,600,011.02
  5. Step 5: Solve for x
    x = 6,378,600,011.02/89,418.06
  6. Step 6: Final answer
    x = 71,334.58

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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.