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Finding the Fourth Proportional to 66,417.60, 91,653.53 and 36,202.25

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Solution

The fourth proportional to 66,417.60, 91,653.53 and 36,202.25 is: 49,957.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,417.60 : 91,653.53 = 36,202.25 : x
  2. Step 2: Convert to fraction form
    66,417.60/91,653.53 = 36,202.25/x
  3. Step 3: Cross multiply
    66,417.60x = 91,653.53 × 36,202.25
  4. Step 4: Simplify right side
    66,417.60x = 3,318,064,183.45
  5. Step 5: Solve for x
    x = 3,318,064,183.45/66,417.60
  6. Step 6: Final answer
    x = 49,957.61

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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.