Home / 66,385.32-91,611.20-36,170.52

Finding the Fourth Proportional to 66,385.32, 91,611.20 and 36,170.52

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Solution

The fourth proportional to 66,385.32, 91,611.20 and 36,170.52 is: 49,915.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,385.32 : 91,611.20 = 36,170.52 : x
  2. Step 2: Convert to fraction form
    66,385.32/91,611.20 = 36,170.52/x
  3. Step 3: Cross multiply
    66,385.32x = 91,611.20 × 36,170.52
  4. Step 4: Simplify right side
    66,385.32x = 3,313,624,741.82
  5. Step 5: Solve for x
    x = 3,313,624,741.82/66,385.32
  6. Step 6: Final answer
    x = 49,915.02

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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.