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Finding the Fourth Proportional to 85,000.44, 117,230.82 and 75,447.30

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Solution

The fourth proportional to 85,000.44, 117,230.82 and 75,447.30 is: 104,055.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,000.44 : 117,230.82 = 75,447.30 : x
  2. Step 2: Convert to fraction form
    85,000.44/117,230.82 = 75,447.30/x
  3. Step 3: Cross multiply
    85,000.44x = 117,230.82 × 75,447.30
  4. Step 4: Simplify right side
    85,000.44x = 8,844,748,845.79
  5. Step 5: Solve for x
    x = 8,844,748,845.79/85,000.44
  6. Step 6: Final answer
    x = 104,055.33

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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.