Home / 75,868.70-113,872.94-38,455.31

Finding the Fourth Proportional to 75,868.70, 113,872.94 and 38,455.31

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Solution

The fourth proportional to 75,868.70, 113,872.94 and 38,455.31 is: 57,718.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,868.70 : 113,872.94 = 38,455.31 : x
  2. Step 2: Convert to fraction form
    75,868.70/113,872.94 = 38,455.31/x
  3. Step 3: Cross multiply
    75,868.70x = 113,872.94 × 38,455.31
  4. Step 4: Simplify right side
    75,868.70x = 4,379,018,804.39
  5. Step 5: Solve for x
    x = 4,379,018,804.39/75,868.70
  6. Step 6: Final answer
    x = 57,718.38

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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.