Home / 81,873.06-122,768.07-41,885.94

Finding the Fourth Proportional to 81,873.06, 122,768.07 and 41,885.94

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Solution

The fourth proportional to 81,873.06, 122,768.07 and 41,885.94 is: 62,807.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,873.06 : 122,768.07 = 41,885.94 : x
  2. Step 2: Convert to fraction form
    81,873.06/122,768.07 = 41,885.94/x
  3. Step 3: Cross multiply
    81,873.06x = 122,768.07 × 41,885.94
  4. Step 4: Simplify right side
    81,873.06x = 5,142,256,013.94
  5. Step 5: Solve for x
    x = 5,142,256,013.94/81,873.06
  6. Step 6: Final answer
    x = 62,807.67

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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.