Home / 75,778.48-104,568.60-42,238

Finding the Fourth Proportional to 75,778.48, 104,568.60 and 42,238

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Solution

The fourth proportional to 75,778.48, 104,568.60 and 42,238 is: 58,285.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,778.48 : 104,568.60 = 42,238 : x
  2. Step 2: Convert to fraction form
    75,778.48/104,568.60 = 42,238/x
  3. Step 3: Cross multiply
    75,778.48x = 104,568.60 × 42,238
  4. Step 4: Simplify right side
    75,778.48x = 4,416,768,526.80
  5. Step 5: Solve for x
    x = 4,416,768,526.80/75,778.48
  6. Step 6: Final answer
    x = 58,285.26

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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.