Home / 66,152.12-91,289.16-35,936.80

Finding the Fourth Proportional to 66,152.12, 91,289.16 and 35,936.80

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Solution

The fourth proportional to 66,152.12, 91,289.16 and 35,936.80 is: 49,592.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,152.12 : 91,289.16 = 35,936.80 : x
  2. Step 2: Convert to fraction form
    66,152.12/91,289.16 = 35,936.80/x
  3. Step 3: Cross multiply
    66,152.12x = 91,289.16 × 35,936.80
  4. Step 4: Simplify right side
    66,152.12x = 3,280,640,056.87
  5. Step 5: Solve for x
    x = 3,280,640,056.87/66,152.12
  6. Step 6: Final answer
    x = 49,592.37

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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.