Home / 81,436.48-122,170.86-25,274.18

Finding the Fourth Proportional to 81,436.48, 122,170.86 and 25,274.18

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Solution

The fourth proportional to 81,436.48, 122,170.86 and 25,274.18 is: 37,916.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,436.48 : 122,170.86 = 25,274.18 : x
  2. Step 2: Convert to fraction form
    81,436.48/122,170.86 = 25,274.18/x
  3. Step 3: Cross multiply
    81,436.48x = 122,170.86 × 25,274.18
  4. Step 4: Simplify right side
    81,436.48x = 3,087,768,611.82
  5. Step 5: Solve for x
    x = 3,087,768,611.82/81,436.48
  6. Step 6: Final answer
    x = 37,916.28

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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.