Home / 78,936.04-108,932.70-43,126.48

Finding the Fourth Proportional to 78,936.04, 108,932.70 and 43,126.48

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Solution

The fourth proportional to 78,936.04, 108,932.70 and 43,126.48 is: 59,515.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,936.04 : 108,932.70 = 43,126.48 : x
  2. Step 2: Convert to fraction form
    78,936.04/108,932.70 = 43,126.48/x
  3. Step 3: Cross multiply
    78,936.04x = 108,932.70 × 43,126.48
  4. Step 4: Simplify right side
    78,936.04x = 4,697,883,907.90
  5. Step 5: Solve for x
    x = 4,697,883,907.90/78,936.04
  6. Step 6: Final answer
    x = 59,515.07

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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.