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Finding the Fourth Proportional to 66,087.60, 91,200.94 and 35,872.90

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Solution

The fourth proportional to 66,087.60, 91,200.94 and 35,872.90 is: 49,504.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,087.60 : 91,200.94 = 35,872.90 : x
  2. Step 2: Convert to fraction form
    66,087.60/91,200.94 = 35,872.90/x
  3. Step 3: Cross multiply
    66,087.60x = 91,200.94 × 35,872.90
  4. Step 4: Simplify right side
    66,087.60x = 3,271,642,200.53
  5. Step 5: Solve for x
    x = 3,271,642,200.53/66,087.60
  6. Step 6: Final answer
    x = 49,504.63

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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.