Home / 81,194.19-122,020.52-47,929.92

Finding the Fourth Proportional to 81,194.19, 122,020.52 and 47,929.92

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Solution

The fourth proportional to 81,194.19, 122,020.52 and 47,929.92 is: 72,030.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,194.19 : 122,020.52 = 47,929.92 : x
  2. Step 2: Convert to fraction form
    81,194.19/122,020.52 = 47,929.92/x
  3. Step 3: Cross multiply
    81,194.19x = 122,020.52 × 47,929.92
  4. Step 4: Simplify right side
    81,194.19x = 5,848,433,522.31
  5. Step 5: Solve for x
    x = 5,848,433,522.31/81,194.19
  6. Step 6: Final answer
    x = 72,030.20

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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.