Home / 80,687.37-111,340.77-46,689.08

Finding the Fourth Proportional to 80,687.37, 111,340.77 and 46,689.08

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Solution

The fourth proportional to 80,687.37, 111,340.77 and 46,689.08 is: 64,426.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,687.37 : 111,340.77 = 46,689.08 : x
  2. Step 2: Convert to fraction form
    80,687.37/111,340.77 = 46,689.08/x
  3. Step 3: Cross multiply
    80,687.37x = 111,340.77 × 46,689.08
  4. Step 4: Simplify right side
    80,687.37x = 5,198,397,561.09
  5. Step 5: Solve for x
    x = 5,198,397,561.09/80,687.37
  6. Step 6: Final answer
    x = 64,426.41

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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.