Home / 81,004.60-111,838.38-50,831.32

Finding the Fourth Proportional to 81,004.60, 111,838.38 and 50,831.32

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Solution

The fourth proportional to 81,004.60, 111,838.38 and 50,831.32 is: 70,179.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,004.60 : 111,838.38 = 50,831.32 : x
  2. Step 2: Convert to fraction form
    81,004.60/111,838.38 = 50,831.32/x
  3. Step 3: Cross multiply
    81,004.60x = 111,838.38 × 50,831.32
  4. Step 4: Simplify right side
    81,004.60x = 5,684,892,482.06
  5. Step 5: Solve for x
    x = 5,684,892,482.06/81,004.60
  6. Step 6: Final answer
    x = 70,179.87

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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.