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Finding the Fourth Proportional to 68,559, 102,801.59 and 36,986.01

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Solution

The fourth proportional to 68,559, 102,801.59 and 36,986.01 is: 55,459.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,559 : 102,801.59 = 36,986.01 : x
  2. Step 2: Convert to fraction form
    68,559/102,801.59 = 36,986.01/x
  3. Step 3: Cross multiply
    68,559x = 102,801.59 × 36,986.01
  4. Step 4: Simplify right side
    68,559x = 3,802,220,450.83
  5. Step 5: Solve for x
    x = 3,802,220,450.83/68,559
  6. Step 6: Final answer
    x = 55,459.10

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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.