Home / 66,416.20-99,689.10-33,173.80

Finding the Fourth Proportional to 66,416.20, 99,689.10 and 33,173.80

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Solution

The fourth proportional to 66,416.20, 99,689.10 and 33,173.80 is: 49,793.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,416.20 : 99,689.10 = 33,173.80 : x
  2. Step 2: Convert to fraction form
    66,416.20/99,689.10 = 33,173.80/x
  3. Step 3: Cross multiply
    66,416.20x = 99,689.10 × 33,173.80
  4. Step 4: Simplify right side
    66,416.20x = 3,307,066,265.58
  5. Step 5: Solve for x
    x = 3,307,066,265.58/66,416.20
  6. Step 6: Final answer
    x = 49,793.07

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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.