Home / 85,721.63-118,297.07-49,422.35

Finding the Fourth Proportional to 85,721.63, 118,297.07 and 49,422.35

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Solution

The fourth proportional to 85,721.63, 118,297.07 and 49,422.35 is: 68,203.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,721.63 : 118,297.07 = 49,422.35 : x
  2. Step 2: Convert to fraction form
    85,721.63/118,297.07 = 49,422.35/x
  3. Step 3: Cross multiply
    85,721.63x = 118,297.07 × 49,422.35
  4. Step 4: Simplify right side
    85,721.63x = 5,846,519,246.15
  5. Step 5: Solve for x
    x = 5,846,519,246.15/85,721.63
  6. Step 6: Final answer
    x = 68,203.55

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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.