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Finding the Fourth Proportional to 66,467.40, 99,701.10 and 65,884.20

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Solution

The fourth proportional to 66,467.40, 99,701.10 and 65,884.20 is: 98,826.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,467.40 : 99,701.10 = 65,884.20 : x
  2. Step 2: Convert to fraction form
    66,467.40/99,701.10 = 65,884.20/x
  3. Step 3: Cross multiply
    66,467.40x = 99,701.10 × 65,884.20
  4. Step 4: Simplify right side
    66,467.40x = 6,568,727,212.62
  5. Step 5: Solve for x
    x = 6,568,727,212.62/66,467.40
  6. Step 6: Final answer
    x = 98,826.30

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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.