Home / 89,285.66-123,218.07-53,481.50

Finding the Fourth Proportional to 89,285.66, 123,218.07 and 53,481.50

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Solution

The fourth proportional to 89,285.66, 123,218.07 and 53,481.50 is: 73,806.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,285.66 : 123,218.07 = 53,481.50 : x
  2. Step 2: Convert to fraction form
    89,285.66/123,218.07 = 53,481.50/x
  3. Step 3: Cross multiply
    89,285.66x = 123,218.07 × 53,481.50
  4. Step 4: Simplify right side
    89,285.66x = 6,589,887,210.71
  5. Step 5: Solve for x
    x = 6,589,887,210.71/89,285.66
  6. Step 6: Final answer
    x = 73,806.78

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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.