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Finding the Fourth Proportional to 66,369.88, 91,590.44 and 36,561.88

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Solution

The fourth proportional to 66,369.88, 91,590.44 and 36,561.88 is: 50,455.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,369.88 : 91,590.44 = 36,561.88 : x
  2. Step 2: Convert to fraction form
    66,369.88/91,590.44 = 36,561.88/x
  3. Step 3: Cross multiply
    66,369.88x = 91,590.44 × 36,561.88
  4. Step 4: Simplify right side
    66,369.88x = 3,348,718,676.43
  5. Step 5: Solve for x
    x = 3,348,718,676.43/66,369.88
  6. Step 6: Final answer
    x = 50,455.40

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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.