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Finding the Fourth Proportional to 66,573.05, 91,870.35 and 36,358.39

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Solution

The fourth proportional to 66,573.05, 91,870.35 and 36,358.39 is: 50,174.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,573.05 : 91,870.35 = 36,358.39 : x
  2. Step 2: Convert to fraction form
    66,573.05/91,870.35 = 36,358.39/x
  3. Step 3: Cross multiply
    66,573.05x = 91,870.35 × 36,358.39
  4. Step 4: Simplify right side
    66,573.05x = 3,340,257,785.06
  5. Step 5: Solve for x
    x = 3,340,257,785.06/66,573.05
  6. Step 6: Final answer
    x = 50,174.32

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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.