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Finding the Fourth Proportional to 66,281.25, 91,468.13 and 36,473.25

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Solution

The fourth proportional to 66,281.25, 91,468.13 and 36,473.25 is: 50,333.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,281.25 : 91,468.13 = 36,473.25 : x
  2. Step 2: Convert to fraction form
    66,281.25/91,468.13 = 36,473.25/x
  3. Step 3: Cross multiply
    66,281.25x = 91,468.13 × 36,473.25
  4. Step 4: Simplify right side
    66,281.25x = 3,336,139,790.16
  5. Step 5: Solve for x
    x = 3,336,139,790.16/66,281.25
  6. Step 6: Final answer
    x = 50,333.09

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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.