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Finding the Fourth Proportional to 69,303.67, 103,968.33 and 21,930.67

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Solution

The fourth proportional to 69,303.67, 103,968.33 and 21,930.67 is: 32,900.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,303.67 : 103,968.33 = 21,930.67 : x
  2. Step 2: Convert to fraction form
    69,303.67/103,968.33 = 21,930.67/x
  3. Step 3: Cross multiply
    69,303.67x = 103,968.33 × 21,930.67
  4. Step 4: Simplify right side
    69,303.67x = 2,280,095,135.68
  5. Step 5: Solve for x
    x = 2,280,095,135.68/69,303.67
  6. Step 6: Final answer
    x = 32,900.06

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1.5x scale

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.