Home / 45,092.54-67,647.32-13,920.50

Finding the Fourth Proportional to 45,092.54, 67,647.32 and 13,920.50

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Solution

The fourth proportional to 45,092.54, 67,647.32 and 13,920.50 is: 20,883.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,092.54 : 67,647.32 = 13,920.50 : x
  2. Step 2: Convert to fraction form
    45,092.54/67,647.32 = 13,920.50/x
  3. Step 3: Cross multiply
    45,092.54x = 67,647.32 × 13,920.50
  4. Step 4: Simplify right side
    45,092.54x = 941,684,448.46
  5. Step 5: Solve for x
    x = 941,684,448.46/45,092.54
  6. Step 6: Final answer
    x = 20,883.38

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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.