Home / 66,415.34-91,652.57-36,200.66

Finding the Fourth Proportional to 66,415.34, 91,652.57 and 36,200.66

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Solution

The fourth proportional to 66,415.34, 91,652.57 and 36,200.66 is: 49,956.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,415.34 : 91,652.57 = 36,200.66 : x
  2. Step 2: Convert to fraction form
    66,415.34/91,652.57 = 36,200.66/x
  3. Step 3: Cross multiply
    66,415.34x = 91,652.57 × 36,200.66
  4. Step 4: Simplify right side
    66,415.34x = 3,317,882,885.43
  5. Step 5: Solve for x
    x = 3,317,882,885.43/66,415.34
  6. Step 6: Final answer
    x = 49,956.58

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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.