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Finding the Fourth Proportional to 66,222.38, 91,383.90 and 37,541.63

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Solution

The fourth proportional to 66,222.38, 91,383.90 and 37,541.63 is: 51,805.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,222.38 : 91,383.90 = 37,541.63 : x
  2. Step 2: Convert to fraction form
    66,222.38/91,383.90 = 37,541.63/x
  3. Step 3: Cross multiply
    66,222.38x = 91,383.90 × 37,541.63
  4. Step 4: Simplify right side
    66,222.38x = 3,430,700,104.84
  5. Step 5: Solve for x
    x = 3,430,700,104.84/66,222.38
  6. Step 6: Final answer
    x = 51,805.75

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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.