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Finding the Fourth Proportional to 68,306.63, 102,460.01 and 21,559.50

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Solution

The fourth proportional to 68,306.63, 102,460.01 and 21,559.50 is: 32,339.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,306.63 : 102,460.01 = 21,559.50 : x
  2. Step 2: Convert to fraction form
    68,306.63/102,460.01 = 21,559.50/x
  3. Step 3: Cross multiply
    68,306.63x = 102,460.01 × 21,559.50
  4. Step 4: Simplify right side
    68,306.63x = 2,208,986,477.80
  5. Step 5: Solve for x
    x = 2,208,986,477.80/68,306.63
  6. Step 6: Final answer
    x = 32,339.27

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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.