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Finding the Fourth Proportional to 66,209.89, 91,370.68 and 35,995.32

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Solution

The fourth proportional to 66,209.89, 91,370.68 and 35,995.32 is: 49,674.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,209.89 : 91,370.68 = 35,995.32 : x
  2. Step 2: Convert to fraction form
    66,209.89/91,370.68 = 35,995.32/x
  3. Step 3: Cross multiply
    66,209.89x = 91,370.68 × 35,995.32
  4. Step 4: Simplify right side
    66,209.89x = 3,288,917,209.37
  5. Step 5: Solve for x
    x = 3,288,917,209.37/66,209.89
  6. Step 6: Final answer
    x = 49,674.11

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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.