Home / 85,205.58-117,583.83-47,479.02

Finding the Fourth Proportional to 85,205.58, 117,583.83 and 47,479.02

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Solution

The fourth proportional to 85,205.58, 117,583.83 and 47,479.02 is: 65,521.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,205.58 : 117,583.83 = 47,479.02 : x
  2. Step 2: Convert to fraction form
    85,205.58/117,583.83 = 47,479.02/x
  3. Step 3: Cross multiply
    85,205.58x = 117,583.83 × 47,479.02
  4. Step 4: Simplify right side
    85,205.58x = 5,582,765,016.25
  5. Step 5: Solve for x
    x = 5,582,765,016.25/85,205.58
  6. Step 6: Final answer
    x = 65,521.12

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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.