Home / 75,131.86-103,682.14-40,676.96

Finding the Fourth Proportional to 75,131.86, 103,682.14 and 40,676.96

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Solution

The fourth proportional to 75,131.86, 103,682.14 and 40,676.96 is: 56,134.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,131.86 : 103,682.14 = 40,676.96 : x
  2. Step 2: Convert to fraction form
    75,131.86/103,682.14 = 40,676.96/x
  3. Step 3: Cross multiply
    75,131.86x = 103,682.14 × 40,676.96
  4. Step 4: Simplify right side
    75,131.86x = 4,217,474,261.49
  5. Step 5: Solve for x
    x = 4,217,474,261.49/75,131.86
  6. Step 6: Final answer
    x = 56,134.30

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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.