Home / 66,137.86-99,103.09-56,236.42

Finding the Fourth Proportional to 66,137.86, 99,103.09 and 56,236.42

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Solution

The fourth proportional to 66,137.86, 99,103.09 and 56,236.42 is: 84,266.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,137.86 : 99,103.09 = 56,236.42 : x
  2. Step 2: Convert to fraction form
    66,137.86/99,103.09 = 56,236.42/x
  3. Step 3: Cross multiply
    66,137.86x = 99,103.09 × 56,236.42
  4. Step 4: Simplify right side
    66,137.86x = 5,573,202,992.54
  5. Step 5: Solve for x
    x = 5,573,202,992.54/66,137.86
  6. Step 6: Final answer
    x = 84,266.45

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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.