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Finding the Fourth Proportional to 66,079.56, 91,188.43 and 37,398.71

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Solution

The fourth proportional to 66,079.56, 91,188.43 and 37,398.71 is: 51,609.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,079.56 : 91,188.43 = 37,398.71 : x
  2. Step 2: Convert to fraction form
    66,079.56/91,188.43 = 37,398.71/x
  3. Step 3: Cross multiply
    66,079.56x = 91,188.43 × 37,398.71
  4. Step 4: Simplify right side
    66,079.56x = 3,410,329,192.98
  5. Step 5: Solve for x
    x = 3,410,329,192.98/66,079.56
  6. Step 6: Final answer
    x = 51,609.44

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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.