Home / 66,215.86-91,377.20-49,295.77

Finding the Fourth Proportional to 66,215.86, 91,377.20 and 49,295.77

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Solution

The fourth proportional to 66,215.86, 91,377.20 and 49,295.77 is: 68,027.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,215.86 : 91,377.20 = 49,295.77 : x
  2. Step 2: Convert to fraction form
    66,215.86/91,377.20 = 49,295.77/x
  3. Step 3: Cross multiply
    66,215.86x = 91,377.20 × 49,295.77
  4. Step 4: Simplify right side
    66,215.86x = 4,504,509,329.24
  5. Step 5: Solve for x
    x = 4,504,509,329.24/66,215.86
  6. Step 6: Final answer
    x = 68,027.65

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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.