Home / 85,297.24-117,772.74-55,100.20

Finding the Fourth Proportional to 85,297.24, 117,772.74 and 55,100.20

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Solution

The fourth proportional to 85,297.24, 117,772.74 and 55,100.20 is: 76,078.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,297.24 : 117,772.74 = 55,100.20 : x
  2. Step 2: Convert to fraction form
    85,297.24/117,772.74 = 55,100.20/x
  3. Step 3: Cross multiply
    85,297.24x = 117,772.74 × 55,100.20
  4. Step 4: Simplify right side
    85,297.24x = 6,489,301,528.55
  5. Step 5: Solve for x
    x = 6,489,301,528.55/85,297.24
  6. Step 6: Final answer
    x = 76,078.68

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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.