Home / 88,785.32-122,440.28-66,174.44

Finding the Fourth Proportional to 88,785.32, 122,440.28 and 66,174.44

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Solution

The fourth proportional to 88,785.32, 122,440.28 and 66,174.44 is: 91,258.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,785.32 : 122,440.28 = 66,174.44 : x
  2. Step 2: Convert to fraction form
    88,785.32/122,440.28 = 66,174.44/x
  3. Step 3: Cross multiply
    88,785.32x = 122,440.28 × 66,174.44
  4. Step 4: Simplify right side
    88,785.32x = 8,102,416,019.37
  5. Step 5: Solve for x
    x = 8,102,416,019.37/88,785.32
  6. Step 6: Final answer
    x = 91,258.52

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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.