Home / 75,204.10-103,782.38-41,215.72

Finding the Fourth Proportional to 75,204.10, 103,782.38 and 41,215.72

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Solution

The fourth proportional to 75,204.10, 103,782.38 and 41,215.72 is: 56,878.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,204.10 : 103,782.38 = 41,215.72 : x
  2. Step 2: Convert to fraction form
    75,204.10/103,782.38 = 41,215.72/x
  3. Step 3: Cross multiply
    75,204.10x = 103,782.38 × 41,215.72
  4. Step 4: Simplify right side
    75,204.10x = 4,277,465,739.86
  5. Step 5: Solve for x
    x = 4,277,465,739.86/75,204.10
  6. Step 6: Final answer
    x = 56,878.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.