Home / 78,538.02-117,825.24-41,118.44

Finding the Fourth Proportional to 78,538.02, 117,825.24 and 41,118.44

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Solution

The fourth proportional to 78,538.02, 117,825.24 and 41,118.44 is: 61,687.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,538.02 : 117,825.24 = 41,118.44 : x
  2. Step 2: Convert to fraction form
    78,538.02/117,825.24 = 41,118.44/x
  3. Step 3: Cross multiply
    78,538.02x = 117,825.24 × 41,118.44
  4. Step 4: Simplify right side
    78,538.02x = 4,844,790,061.43
  5. Step 5: Solve for x
    x = 4,844,790,061.43/78,538.02
  6. Step 6: Final answer
    x = 61,687.19

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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.