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Finding the Fourth Proportional to 68,989.37, 103,464.06 and 26,860.07

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Solution

The fourth proportional to 68,989.37, 103,464.06 and 26,860.07 is: 40,282.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,989.37 : 103,464.06 = 26,860.07 : x
  2. Step 2: Convert to fraction form
    68,989.37/103,464.06 = 26,860.07/x
  3. Step 3: Cross multiply
    68,989.37x = 103,464.06 × 26,860.07
  4. Step 4: Simplify right side
    68,989.37x = 2,779,051,376.76
  5. Step 5: Solve for x
    x = 2,779,051,376.76/68,989.37
  6. Step 6: Final answer
    x = 40,282.32

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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.