Home / 81,904.19-122,846.54-48,190.37

Finding the Fourth Proportional to 81,904.19, 122,846.54 and 48,190.37

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Solution

The fourth proportional to 81,904.19, 122,846.54 and 48,190.37 is: 72,279.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,904.19 : 122,846.54 = 48,190.37 : x
  2. Step 2: Convert to fraction form
    81,904.19/122,846.54 = 48,190.37/x
  3. Step 3: Cross multiply
    81,904.19x = 122,846.54 × 48,190.37
  4. Step 4: Simplify right side
    81,904.19x = 5,920,019,360.64
  5. Step 5: Solve for x
    x = 5,920,019,360.64/81,904.19
  6. Step 6: Final answer
    x = 72,279.82

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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.