Home / 78,045.94-117,104.46-33,079.60

Finding the Fourth Proportional to 78,045.94, 117,104.46 and 33,079.60

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Solution

The fourth proportional to 78,045.94, 117,104.46 and 33,079.60 is: 49,634.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,045.94 : 117,104.46 = 33,079.60 : x
  2. Step 2: Convert to fraction form
    78,045.94/117,104.46 = 33,079.60/x
  3. Step 3: Cross multiply
    78,045.94x = 117,104.46 × 33,079.60
  4. Step 4: Simplify right side
    78,045.94x = 3,873,768,695.02
  5. Step 5: Solve for x
    x = 3,873,768,695.02/78,045.94
  6. Step 6: Final answer
    x = 49,634.47

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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.