Home / 85,894.26-118,531.32-50,085.78

Finding the Fourth Proportional to 85,894.26, 118,531.32 and 50,085.78

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Solution

The fourth proportional to 85,894.26, 118,531.32 and 50,085.78 is: 69,116.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,894.26 : 118,531.32 = 50,085.78 : x
  2. Step 2: Convert to fraction form
    85,894.26/118,531.32 = 50,085.78/x
  3. Step 3: Cross multiply
    85,894.26x = 118,531.32 × 50,085.78
  4. Step 4: Simplify right side
    85,894.26x = 5,936,733,616.63
  5. Step 5: Solve for x
    x = 5,936,733,616.63/85,894.26
  6. Step 6: Final answer
    x = 69,116.77

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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.