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Finding the Fourth Proportional to 66,160.40, 91,301.46 and 35,945.84

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Solution

The fourth proportional to 66,160.40, 91,301.46 and 35,945.84 is: 49,605.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,160.40 : 91,301.46 = 35,945.84 : x
  2. Step 2: Convert to fraction form
    66,160.40/91,301.46 = 35,945.84/x
  3. Step 3: Cross multiply
    66,160.40x = 91,301.46 × 35,945.84
  4. Step 4: Simplify right side
    66,160.40x = 3,281,907,672.93
  5. Step 5: Solve for x
    x = 3,281,907,672.93/66,160.40
  6. Step 6: Final answer
    x = 49,605.32

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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.