Home / 55,666.72-76,831.67-51,183.38

Finding the Fourth Proportional to 55,666.72, 76,831.67 and 51,183.38

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Solution

The fourth proportional to 55,666.72, 76,831.67 and 51,183.38 is: 70,643.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,666.72 : 76,831.67 = 51,183.38 : x
  2. Step 2: Convert to fraction form
    55,666.72/76,831.67 = 51,183.38/x
  3. Step 3: Cross multiply
    55,666.72x = 76,831.67 × 51,183.38
  4. Step 4: Simplify right side
    55,666.72x = 3,932,504,561.64
  5. Step 5: Solve for x
    x = 3,932,504,561.64/55,666.72
  6. Step 6: Final answer
    x = 70,643.73

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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.