Home / 75,913.73-113,939.70-40,404.86

Finding the Fourth Proportional to 75,913.73, 113,939.70 and 40,404.86

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Solution

The fourth proportional to 75,913.73, 113,939.70 and 40,404.86 is: 60,644.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,913.73 : 113,939.70 = 40,404.86 : x
  2. Step 2: Convert to fraction form
    75,913.73/113,939.70 = 40,404.86/x
  3. Step 3: Cross multiply
    75,913.73x = 113,939.70 × 40,404.86
  4. Step 4: Simplify right side
    75,913.73x = 4,603,717,984.14
  5. Step 5: Solve for x
    x = 4,603,717,984.14/75,913.73
  6. Step 6: Final answer
    x = 60,644.07

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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.