Home / 75,115.06-103,658.86-41,123.78

Finding the Fourth Proportional to 75,115.06, 103,658.86 and 41,123.78

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Solution

The fourth proportional to 75,115.06, 103,658.86 and 41,123.78 is: 56,750.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,115.06 : 103,658.86 = 41,123.78 : x
  2. Step 2: Convert to fraction form
    75,115.06/103,658.86 = 41,123.78/x
  3. Step 3: Cross multiply
    75,115.06x = 103,658.86 × 41,123.78
  4. Step 4: Simplify right side
    75,115.06x = 4,262,844,153.69
  5. Step 5: Solve for x
    x = 4,262,844,153.69/75,115.06
  6. Step 6: Final answer
    x = 56,750.86

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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.