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Finding the Fourth Proportional to 66,265.50, 91,446.39 and 36,457.50

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Solution

The fourth proportional to 66,265.50, 91,446.39 and 36,457.50 is: 50,311.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,265.50 : 91,446.39 = 36,457.50 : x
  2. Step 2: Convert to fraction form
    66,265.50/91,446.39 = 36,457.50/x
  3. Step 3: Cross multiply
    66,265.50x = 91,446.39 × 36,457.50
  4. Step 4: Simplify right side
    66,265.50x = 3,333,906,763.43
  5. Step 5: Solve for x
    x = 3,333,906,763.43/66,265.50
  6. Step 6: Final answer
    x = 50,311.35

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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.