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Finding the Fourth Proportional to 66,150.90, 91,287.88 and 35,935.98

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Solution

The fourth proportional to 66,150.90, 91,287.88 and 35,935.98 is: 49,591.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,150.90 : 91,287.88 = 35,935.98 : x
  2. Step 2: Convert to fraction form
    66,150.90/91,287.88 = 35,935.98/x
  3. Step 3: Cross multiply
    66,150.90x = 91,287.88 × 35,935.98
  4. Step 4: Simplify right side
    66,150.90x = 3,280,518,997.75
  5. Step 5: Solve for x
    x = 3,280,518,997.75/66,150.90
  6. Step 6: Final answer
    x = 49,591.45

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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.