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Finding the Fourth Proportional to 66,099.84, 91,215.32 and 35,884.58

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Solution

The fourth proportional to 66,099.84, 91,215.32 and 35,884.58 is: 49,519.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,099.84 : 91,215.32 = 35,884.58 : x
  2. Step 2: Convert to fraction form
    66,099.84/91,215.32 = 35,884.58/x
  3. Step 3: Cross multiply
    66,099.84x = 91,215.32 × 35,884.58
  4. Step 4: Simplify right side
    66,099.84x = 3,273,223,447.77
  5. Step 5: Solve for x
    x = 3,273,223,447.77/66,099.84
  6. Step 6: Final answer
    x = 49,519.39

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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.