Home / 85,131.36-117,499.04-51,141.44

Finding the Fourth Proportional to 85,131.36, 117,499.04 and 51,141.44

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Solution

The fourth proportional to 85,131.36, 117,499.04 and 51,141.44 is: 70,585.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,131.36 : 117,499.04 = 51,141.44 : x
  2. Step 2: Convert to fraction form
    85,131.36/117,499.04 = 51,141.44/x
  3. Step 3: Cross multiply
    85,131.36x = 117,499.04 × 51,141.44
  4. Step 4: Simplify right side
    85,131.36x = 6,009,070,104.22
  5. Step 5: Solve for x
    x = 6,009,070,104.22/85,131.36
  6. Step 6: Final answer
    x = 70,585.86

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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.