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Finding the Fourth Proportional to 66,450.66, 91,699.62 and 36,235.50

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Solution

The fourth proportional to 66,450.66, 91,699.62 and 36,235.50 is: 50,003.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,450.66 : 91,699.62 = 36,235.50 : x
  2. Step 2: Convert to fraction form
    66,450.66/91,699.62 = 36,235.50/x
  3. Step 3: Cross multiply
    66,450.66x = 91,699.62 × 36,235.50
  4. Step 4: Simplify right side
    66,450.66x = 3,322,781,580.51
  5. Step 5: Solve for x
    x = 3,322,781,580.51/66,450.66
  6. Step 6: Final answer
    x = 50,003.74

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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.