Home / 85,296.24-117,771.36-55,099.20

Finding the Fourth Proportional to 85,296.24, 117,771.36 and 55,099.20

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Solution

The fourth proportional to 85,296.24, 117,771.36 and 55,099.20 is: 76,077.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,296.24 : 117,771.36 = 55,099.20 : x
  2. Step 2: Convert to fraction form
    85,296.24/117,771.36 = 55,099.20/x
  3. Step 3: Cross multiply
    85,296.24x = 117,771.36 × 55,099.20
  4. Step 4: Simplify right side
    85,296.24x = 6,489,107,718.91
  5. Step 5: Solve for x
    x = 6,489,107,718.91/85,296.24
  6. Step 6: Final answer
    x = 76,077.30

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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.