Home / 41,235.78-61,718.40-31,320.57

Finding the Fourth Proportional to 41,235.78, 61,718.40 and 31,320.57

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Solution

The fourth proportional to 41,235.78, 61,718.40 and 31,320.57 is: 46,878.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,235.78 : 61,718.40 = 31,320.57 : x
  2. Step 2: Convert to fraction form
    41,235.78/61,718.40 = 31,320.57/x
  3. Step 3: Cross multiply
    41,235.78x = 61,718.40 × 31,320.57
  4. Step 4: Simplify right side
    41,235.78x = 1,933,055,467.49
  5. Step 5: Solve for x
    x = 1,933,055,467.49/41,235.78
  6. Step 6: Final answer
    x = 46,878.11

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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.