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Finding the Fourth Proportional to 66,285.28, 91,473.66 and 36,477.28

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Solution

The fourth proportional to 66,285.28, 91,473.66 and 36,477.28 is: 50,338.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,285.28 : 91,473.66 = 36,477.28 : x
  2. Step 2: Convert to fraction form
    66,285.28/91,473.66 = 36,477.28/x
  3. Step 3: Cross multiply
    66,285.28x = 91,473.66 × 36,477.28
  4. Step 4: Simplify right side
    66,285.28x = 3,336,710,308.44
  5. Step 5: Solve for x
    x = 3,336,710,308.44/66,285.28
  6. Step 6: Final answer
    x = 50,338.63

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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.