Home / 81,416.61-122,054.26-31,532.96

Finding the Fourth Proportional to 81,416.61, 122,054.26 and 31,532.96

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Solution

The fourth proportional to 81,416.61, 122,054.26 and 31,532.96 is: 47,272.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,416.61 : 122,054.26 = 31,532.96 : x
  2. Step 2: Convert to fraction form
    81,416.61/122,054.26 = 31,532.96/x
  3. Step 3: Cross multiply
    81,416.61x = 122,054.26 × 31,532.96
  4. Step 4: Simplify right side
    81,416.61x = 3,848,731,714.44
  5. Step 5: Solve for x
    x = 3,848,731,714.44/81,416.61
  6. Step 6: Final answer
    x = 47,272.07

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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.