Home / 81,970.22-122,986.29-32,085.96

Finding the Fourth Proportional to 81,970.22, 122,986.29 and 32,085.96

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Solution

The fourth proportional to 81,970.22, 122,986.29 and 32,085.96 is: 48,141.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,970.22 : 122,986.29 = 32,085.96 : x
  2. Step 2: Convert to fraction form
    81,970.22/122,986.29 = 32,085.96/x
  3. Step 3: Cross multiply
    81,970.22x = 122,986.29 × 32,085.96
  4. Step 4: Simplify right side
    81,970.22x = 3,946,133,181.49
  5. Step 5: Solve for x
    x = 3,946,133,181.49/81,970.22
  6. Step 6: Final answer
    x = 48,141.06

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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.