Home / 78,504.73-117,748.42-21,583.08

Finding the Fourth Proportional to 78,504.73, 117,748.42 and 21,583.08

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Solution

The fourth proportional to 78,504.73, 117,748.42 and 21,583.08 is: 32,372.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,504.73 : 117,748.42 = 21,583.08 : x
  2. Step 2: Convert to fraction form
    78,504.73/117,748.42 = 21,583.08/x
  3. Step 3: Cross multiply
    78,504.73x = 117,748.42 × 21,583.08
  4. Step 4: Simplify right side
    78,504.73x = 2,541,373,514.78
  5. Step 5: Solve for x
    x = 2,541,373,514.78/78,504.73
  6. Step 6: Final answer
    x = 32,372.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.