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Finding the Fourth Proportional to 66,160.32, 91,300.86 and 35,945.43

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Solution

The fourth proportional to 66,160.32, 91,300.86 and 35,945.43 is: 49,604.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,160.32 : 91,300.86 = 35,945.43 : x
  2. Step 2: Convert to fraction form
    66,160.32/91,300.86 = 35,945.43/x
  3. Step 3: Cross multiply
    66,160.32x = 91,300.86 × 35,945.43
  4. Step 4: Simplify right side
    66,160.32x = 3,281,848,672.07
  5. Step 5: Solve for x
    x = 3,281,848,672.07/66,160.32
  6. Step 6: Final answer
    x = 49,604.49

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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.