Home / 85,388.04-117,840.06-49,589.28

Finding the Fourth Proportional to 85,388.04, 117,840.06 and 49,589.28

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Solution

The fourth proportional to 85,388.04, 117,840.06 and 49,589.28 is: 68,435.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,388.04 : 117,840.06 = 49,589.28 : x
  2. Step 2: Convert to fraction form
    85,388.04/117,840.06 = 49,589.28/x
  3. Step 3: Cross multiply
    85,388.04x = 117,840.06 × 49,589.28
  4. Step 4: Simplify right side
    85,388.04x = 5,843,603,730.56
  5. Step 5: Solve for x
    x = 5,843,603,730.56/85,388.04
  6. Step 6: Final answer
    x = 68,435.86

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1.5x scale

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.