Home / 80,320.12-110,831.28-44,508.40

Finding the Fourth Proportional to 80,320.12, 110,831.28 and 44,508.40

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Solution

The fourth proportional to 80,320.12, 110,831.28 and 44,508.40 is: 61,415.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,320.12 : 110,831.28 = 44,508.40 : x
  2. Step 2: Convert to fraction form
    80,320.12/110,831.28 = 44,508.40/x
  3. Step 3: Cross multiply
    80,320.12x = 110,831.28 × 44,508.40
  4. Step 4: Simplify right side
    80,320.12x = 4,932,922,942.75
  5. Step 5: Solve for x
    x = 4,932,922,942.75/80,320.12
  6. Step 6: Final answer
    x = 61,415.78

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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.