Home / 68,140.06-102,123.60-30,660.10

Finding the Fourth Proportional to 68,140.06, 102,123.60 and 30,660.10

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Solution

The fourth proportional to 68,140.06, 102,123.60 and 30,660.10 is: 45,951.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,140.06 : 102,123.60 = 30,660.10 : x
  2. Step 2: Convert to fraction form
    68,140.06/102,123.60 = 30,660.10/x
  3. Step 3: Cross multiply
    68,140.06x = 102,123.60 × 30,660.10
  4. Step 4: Simplify right side
    68,140.06x = 3,131,119,788.36
  5. Step 5: Solve for x
    x = 3,131,119,788.36/68,140.06
  6. Step 6: Final answer
    x = 45,951.23

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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.