Home / 68,017.38-102,009.87-28,575.26

Finding the Fourth Proportional to 68,017.38, 102,009.87 and 28,575.26

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Solution

The fourth proportional to 68,017.38, 102,009.87 and 28,575.26 is: 42,856.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,017.38 : 102,009.87 = 28,575.26 : x
  2. Step 2: Convert to fraction form
    68,017.38/102,009.87 = 28,575.26/x
  3. Step 3: Cross multiply
    68,017.38x = 102,009.87 × 28,575.26
  4. Step 4: Simplify right side
    68,017.38x = 2,914,958,557.82
  5. Step 5: Solve for x
    x = 2,914,958,557.82/68,017.38
  6. Step 6: Final answer
    x = 42,856.08

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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.