Home / 81,628-122,436.24-40,060

Finding the Fourth Proportional to 81,628, 122,436.24 and 40,060

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Solution

The fourth proportional to 81,628, 122,436.24 and 40,060 is: 60,087.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,628 : 122,436.24 = 40,060 : x
  2. Step 2: Convert to fraction form
    81,628/122,436.24 = 40,060/x
  3. Step 3: Cross multiply
    81,628x = 122,436.24 × 40,060
  4. Step 4: Simplify right side
    81,628x = 4,904,795,774.40
  5. Step 5: Solve for x
    x = 4,904,795,774.40/81,628
  6. Step 6: Final answer
    x = 60,087.17

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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.