Home / 66,245.21-99,258.67-38,188.95

Finding the Fourth Proportional to 66,245.21, 99,258.67 and 38,188.95

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Solution

The fourth proportional to 66,245.21, 99,258.67 and 38,188.95 is: 57,220.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,245.21 : 99,258.67 = 38,188.95 : x
  2. Step 2: Convert to fraction form
    66,245.21/99,258.67 = 38,188.95/x
  3. Step 3: Cross multiply
    66,245.21x = 99,258.67 × 38,188.95
  4. Step 4: Simplify right side
    66,245.21x = 3,790,584,385.70
  5. Step 5: Solve for x
    x = 3,790,584,385.70/66,245.21
  6. Step 6: Final answer
    x = 57,220.51

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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.