Home / 50,831.12-76,081.08-45,981.20

Finding the Fourth Proportional to 50,831.12, 76,081.08 and 45,981.20

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Solution

The fourth proportional to 50,831.12, 76,081.08 and 45,981.20 is: 68,822.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,831.12 : 76,081.08 = 45,981.20 : x
  2. Step 2: Convert to fraction form
    50,831.12/76,081.08 = 45,981.20/x
  3. Step 3: Cross multiply
    50,831.12x = 76,081.08 × 45,981.20
  4. Step 4: Simplify right side
    50,831.12x = 3,498,299,355.70
  5. Step 5: Solve for x
    x = 3,498,299,355.70/50,831.12
  6. Step 6: Final answer
    x = 68,822.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.