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Finding the Fourth Proportional to 66,601.64, 99,880.50 and 22,216.16

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Solution

The fourth proportional to 66,601.64, 99,880.50 and 22,216.16 is: 33,316.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,601.64 : 99,880.50 = 22,216.16 : x
  2. Step 2: Convert to fraction form
    66,601.64/99,880.50 = 22,216.16/x
  3. Step 3: Cross multiply
    66,601.64x = 99,880.50 × 22,216.16
  4. Step 4: Simplify right side
    66,601.64x = 2,218,961,168.88
  5. Step 5: Solve for x
    x = 2,218,961,168.88/66,601.64
  6. Step 6: Final answer
    x = 33,316.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.