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Finding the Fourth Proportional to 66,617.54, 91,932.49 and 36,402.79

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Solution

The fourth proportional to 66,617.54, 91,932.49 and 36,402.79 is: 50,236.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,617.54 : 91,932.49 = 36,402.79 : x
  2. Step 2: Convert to fraction form
    66,617.54/91,932.49 = 36,402.79/x
  3. Step 3: Cross multiply
    66,617.54x = 91,932.49 × 36,402.79
  4. Step 4: Simplify right side
    66,617.54x = 3,346,598,693.31
  5. Step 5: Solve for x
    x = 3,346,598,693.31/66,617.54
  6. Step 6: Final answer
    x = 50,236.00

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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.