Home / 66,329.20-91,531.32-36,113.76

Finding the Fourth Proportional to 66,329.20, 91,531.32 and 36,113.76

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Solution

The fourth proportional to 66,329.20, 91,531.32 and 36,113.76 is: 49,835.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,329.20 : 91,531.32 = 36,113.76 : x
  2. Step 2: Convert to fraction form
    66,329.20/91,531.32 = 36,113.76/x
  3. Step 3: Cross multiply
    66,329.20x = 91,531.32 × 36,113.76
  4. Step 4: Simplify right side
    66,329.20x = 3,305,540,122.96
  5. Step 5: Solve for x
    x = 3,305,540,122.96/66,329.20
  6. Step 6: Final answer
    x = 49,835.37

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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.