Home / 66,432.56-91,674.23-36,217.28

Finding the Fourth Proportional to 66,432.56, 91,674.23 and 36,217.28

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Solution

The fourth proportional to 66,432.56, 91,674.23 and 36,217.28 is: 49,978.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,432.56 : 91,674.23 = 36,217.28 : x
  2. Step 2: Convert to fraction form
    66,432.56/91,674.23 = 36,217.28/x
  3. Step 3: Cross multiply
    66,432.56x = 91,674.23 × 36,217.28
  4. Step 4: Simplify right side
    66,432.56x = 3,320,190,992.85
  5. Step 5: Solve for x
    x = 3,320,190,992.85/66,432.56
  6. Step 6: Final answer
    x = 49,978.37

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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.