Home / 88,714.20-122,427-48,428.32

Finding the Fourth Proportional to 88,714.20, 122,427 and 48,428.32

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Solution

The fourth proportional to 88,714.20, 122,427 and 48,428.32 is: 66,831.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,714.20 : 122,427 = 48,428.32 : x
  2. Step 2: Convert to fraction form
    88,714.20/122,427 = 48,428.32/x
  3. Step 3: Cross multiply
    88,714.20x = 122,427 × 48,428.32
  4. Step 4: Simplify right side
    88,714.20x = 5,928,933,932.64
  5. Step 5: Solve for x
    x = 5,928,933,932.64/88,714.20
  6. Step 6: Final answer
    x = 66,831.85

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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.