Home / 50,831.12-70,145.88-28,169.90

Finding the Fourth Proportional to 50,831.12, 70,145.88 and 28,169.90

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Solution

The fourth proportional to 50,831.12, 70,145.88 and 28,169.90 is: 38,873.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,831.12 : 70,145.88 = 28,169.90 : x
  2. Step 2: Convert to fraction form
    50,831.12/70,145.88 = 28,169.90/x
  3. Step 3: Cross multiply
    50,831.12x = 70,145.88 × 28,169.90
  4. Step 4: Simplify right side
    50,831.12x = 1,976,002,425.01
  5. Step 5: Solve for x
    x = 1,976,002,425.01/50,831.12
  6. Step 6: Final answer
    x = 38,873.87

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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.