Home / 68,997.86-103,628.10-42,885.08

Finding the Fourth Proportional to 68,997.86, 103,628.10 and 42,885.08

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Solution

The fourth proportional to 68,997.86, 103,628.10 and 42,885.08 is: 64,409.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,997.86 : 103,628.10 = 42,885.08 : x
  2. Step 2: Convert to fraction form
    68,997.86/103,628.10 = 42,885.08/x
  3. Step 3: Cross multiply
    68,997.86x = 103,628.10 × 42,885.08
  4. Step 4: Simplify right side
    68,997.86x = 4,444,099,358.75
  5. Step 5: Solve for x
    x = 4,444,099,358.75/68,997.86
  6. Step 6: Final answer
    x = 64,409.23

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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.