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Finding the Fourth Proportional to 66,384.60, 91,610.76 and 36,576.60

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Solution

The fourth proportional to 66,384.60, 91,610.76 and 36,576.60 is: 50,475.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,384.60 : 91,610.76 = 36,576.60 : x
  2. Step 2: Convert to fraction form
    66,384.60/91,610.76 = 36,576.60/x
  3. Step 3: Cross multiply
    66,384.60x = 91,610.76 × 36,576.60
  4. Step 4: Simplify right side
    66,384.60x = 3,350,810,124.22
  5. Step 5: Solve for x
    x = 3,350,810,124.22/66,384.60
  6. Step 6: Final answer
    x = 50,475.71

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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.