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Finding the Fourth Proportional to 66,156.16, 91,295.04 and 36,348.80

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Solution

The fourth proportional to 66,156.16, 91,295.04 and 36,348.80 is: 50,161.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,156.16 : 91,295.04 = 36,348.80 : x
  2. Step 2: Convert to fraction form
    66,156.16/91,295.04 = 36,348.80/x
  3. Step 3: Cross multiply
    66,156.16x = 91,295.04 × 36,348.80
  4. Step 4: Simplify right side
    66,156.16x = 3,318,465,149.95
  5. Step 5: Solve for x
    x = 3,318,465,149.95/66,156.16
  6. Step 6: Final answer
    x = 50,161.09

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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.