Home / 54,831.72-75,663.54-30,960.75

Finding the Fourth Proportional to 54,831.72, 75,663.54 and 30,960.75

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Solution

The fourth proportional to 54,831.72, 75,663.54 and 30,960.75 is: 42,723.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,831.72 : 75,663.54 = 30,960.75 : x
  2. Step 2: Convert to fraction form
    54,831.72/75,663.54 = 30,960.75/x
  3. Step 3: Cross multiply
    54,831.72x = 75,663.54 × 30,960.75
  4. Step 4: Simplify right side
    54,831.72x = 2,342,599,778.42
  5. Step 5: Solve for x
    x = 2,342,599,778.42/54,831.72
  6. Step 6: Final answer
    x = 42,723.44

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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.