Home / 45,265.08-67,905.14-18,971.80

Finding the Fourth Proportional to 45,265.08, 67,905.14 and 18,971.80

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Solution

The fourth proportional to 45,265.08, 67,905.14 and 18,971.80 is: 28,460.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,265.08 : 67,905.14 = 18,971.80 : x
  2. Step 2: Convert to fraction form
    45,265.08/67,905.14 = 18,971.80/x
  3. Step 3: Cross multiply
    45,265.08x = 67,905.14 × 18,971.80
  4. Step 4: Simplify right side
    45,265.08x = 1,288,282,735.05
  5. Step 5: Solve for x
    x = 1,288,282,735.05/45,265.08
  6. Step 6: Final answer
    x = 28,460.85

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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.