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Finding the Fourth Proportional to 68,230.98, 102,362.67 and 21,483.72

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Solution

The fourth proportional to 68,230.98, 102,362.67 and 21,483.72 is: 32,230.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,230.98 : 102,362.67 = 21,483.72 : x
  2. Step 2: Convert to fraction form
    68,230.98/102,362.67 = 21,483.72/x
  3. Step 3: Cross multiply
    68,230.98x = 102,362.67 × 21,483.72
  4. Step 4: Simplify right side
    68,230.98x = 2,199,130,940.73
  5. Step 5: Solve for x
    x = 2,199,130,940.73/68,230.98
  6. Step 6: Final answer
    x = 32,230.68

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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.