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Finding the Fourth Proportional to 66,574.08, 91,872.72 and 36,358.83

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Solution

The fourth proportional to 66,574.08, 91,872.72 and 36,358.83 is: 50,175.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,574.08 : 91,872.72 = 36,358.83 : x
  2. Step 2: Convert to fraction form
    66,574.08/91,872.72 = 36,358.83/x
  3. Step 3: Cross multiply
    66,574.08x = 91,872.72 × 36,358.83
  4. Step 4: Simplify right side
    66,574.08x = 3,340,384,608.12
  5. Step 5: Solve for x
    x = 3,340,384,608.12/66,574.08
  6. Step 6: Final answer
    x = 50,175.45

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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.