Home / 75,840.15-104,658.39-41,847.78

Finding the Fourth Proportional to 75,840.15, 104,658.39 and 41,847.78

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Solution

The fourth proportional to 75,840.15, 104,658.39 and 41,847.78 is: 57,749.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,840.15 : 104,658.39 = 41,847.78 : x
  2. Step 2: Convert to fraction form
    75,840.15/104,658.39 = 41,847.78/x
  3. Step 3: Cross multiply
    75,840.15x = 104,658.39 × 41,847.78
  4. Step 4: Simplify right side
    75,840.15x = 4,379,721,279.87
  5. Step 5: Solve for x
    x = 4,379,721,279.87/75,840.15
  6. Step 6: Final answer
    x = 57,749.38

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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.