Home / 78,943.14-108,941.62-43,133.15

Finding the Fourth Proportional to 78,943.14, 108,941.62 and 43,133.15

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Solution

The fourth proportional to 78,943.14, 108,941.62 and 43,133.15 is: 59,523.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,943.14 : 108,941.62 = 43,133.15 : x
  2. Step 2: Convert to fraction form
    78,943.14/108,941.62 = 43,133.15/x
  3. Step 3: Cross multiply
    78,943.14x = 108,941.62 × 43,133.15
  4. Step 4: Simplify right side
    78,943.14x = 4,698,994,936.00
  5. Step 5: Solve for x
    x = 4,698,994,936.00/78,943.14
  6. Step 6: Final answer
    x = 59,523.79

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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.