Home / 85,690.54-118,236.44-55,471.66

Finding the Fourth Proportional to 85,690.54, 118,236.44 and 55,471.66

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Solution

The fourth proportional to 85,690.54, 118,236.44 and 55,471.66 is: 76,540.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,690.54 : 118,236.44 = 55,471.66 : x
  2. Step 2: Convert to fraction form
    85,690.54/118,236.44 = 55,471.66/x
  3. Step 3: Cross multiply
    85,690.54x = 118,236.44 × 55,471.66
  4. Step 4: Simplify right side
    85,690.54x = 6,558,771,599.29
  5. Step 5: Solve for x
    x = 6,558,771,599.29/85,690.54
  6. Step 6: Final answer
    x = 76,540.21

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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.