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Finding the Fourth Proportional to 66,551.45, 91,838.37 and 36,338.04

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Solution

The fourth proportional to 66,551.45, 91,838.37 and 36,338.04 is: 50,145.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,551.45 : 91,838.37 = 36,338.04 : x
  2. Step 2: Convert to fraction form
    66,551.45/91,838.37 = 36,338.04/x
  3. Step 3: Cross multiply
    66,551.45x = 91,838.37 × 36,338.04
  4. Step 4: Simplify right side
    66,551.45x = 3,337,226,180.90
  5. Step 5: Solve for x
    x = 3,337,226,180.90/66,551.45
  6. Step 6: Final answer
    x = 50,145.06

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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.