Home / 67,249.40-100,986.56-42,007.66

Finding the Fourth Proportional to 67,249.40, 100,986.56 and 42,007.66

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Solution

The fourth proportional to 67,249.40, 100,986.56 and 42,007.66 is: 63,081.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,249.40 : 100,986.56 = 42,007.66 : x
  2. Step 2: Convert to fraction form
    67,249.40/100,986.56 = 42,007.66/x
  3. Step 3: Cross multiply
    67,249.40x = 100,986.56 × 42,007.66
  4. Step 4: Simplify right side
    67,249.40x = 4,242,209,077.05
  5. Step 5: Solve for x
    x = 4,242,209,077.05/67,249.40
  6. Step 6: Final answer
    x = 63,081.74

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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.