Home / 55,192.92-76,163.52-31,319.04

Finding the Fourth Proportional to 55,192.92, 76,163.52 and 31,319.04

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Solution

The fourth proportional to 55,192.92, 76,163.52 and 31,319.04 is: 43,218.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,192.92 : 76,163.52 = 31,319.04 : x
  2. Step 2: Convert to fraction form
    55,192.92/76,163.52 = 31,319.04/x
  3. Step 3: Cross multiply
    55,192.92x = 76,163.52 × 31,319.04
  4. Step 4: Simplify right side
    55,192.92x = 2,385,368,329.42
  5. Step 5: Solve for x
    x = 2,385,368,329.42/55,192.92
  6. Step 6: Final answer
    x = 43,218.74

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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.