Home / 78,968.94-108,976.88-43,158.95

Finding the Fourth Proportional to 78,968.94, 108,976.88 and 43,158.95

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Solution

The fourth proportional to 78,968.94, 108,976.88 and 43,158.95 is: 59,559.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,968.94 : 108,976.88 = 43,158.95 : x
  2. Step 2: Convert to fraction form
    78,968.94/108,976.88 = 43,158.95/x
  3. Step 3: Cross multiply
    78,968.94x = 108,976.88 × 43,158.95
  4. Step 4: Simplify right side
    78,968.94x = 4,703,326,954.40
  5. Step 5: Solve for x
    x = 4,703,326,954.40/78,968.94
  6. Step 6: Final answer
    x = 59,559.20

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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.