Home / 78,943.36-118,415.04-23,539.36

Finding the Fourth Proportional to 78,943.36, 118,415.04 and 23,539.36

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Solution

The fourth proportional to 78,943.36, 118,415.04 and 23,539.36 is: 35,309.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,943.36 : 118,415.04 = 23,539.36 : x
  2. Step 2: Convert to fraction form
    78,943.36/118,415.04 = 23,539.36/x
  3. Step 3: Cross multiply
    78,943.36x = 118,415.04 × 23,539.36
  4. Step 4: Simplify right side
    78,943.36x = 2,787,414,255.97
  5. Step 5: Solve for x
    x = 2,787,414,255.97/78,943.36
  6. Step 6: Final answer
    x = 35,309.04

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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.