Home / 66,176.80-99,265.20-45,181.60

Finding the Fourth Proportional to 66,176.80, 99,265.20 and 45,181.60

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Solution

The fourth proportional to 66,176.80, 99,265.20 and 45,181.60 is: 67,772.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,176.80 : 99,265.20 = 45,181.60 : x
  2. Step 2: Convert to fraction form
    66,176.80/99,265.20 = 45,181.60/x
  3. Step 3: Cross multiply
    66,176.80x = 99,265.20 × 45,181.60
  4. Step 4: Simplify right side
    66,176.80x = 4,484,960,560.32
  5. Step 5: Solve for x
    x = 4,484,960,560.32/66,176.80
  6. Step 6: Final answer
    x = 67,772.40

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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.