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Finding the Fourth Proportional to 66,202.76, 91,360.20 and 35,988.32

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Solution

The fourth proportional to 66,202.76, 91,360.20 and 35,988.32 is: 49,664.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,202.76 : 91,360.20 = 35,988.32 : x
  2. Step 2: Convert to fraction form
    66,202.76/91,360.20 = 35,988.32/x
  3. Step 3: Cross multiply
    66,202.76x = 91,360.20 × 35,988.32
  4. Step 4: Simplify right side
    66,202.76x = 3,287,900,112.86
  5. Step 5: Solve for x
    x = 3,287,900,112.86/66,202.76
  6. Step 6: Final answer
    x = 49,664.09

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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.