Home / 45,221.52-67,845.55-20,256.02

Finding the Fourth Proportional to 45,221.52, 67,845.55 and 20,256.02

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Solution

The fourth proportional to 45,221.52, 67,845.55 and 20,256.02 is: 30,389.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,221.52 : 67,845.55 = 20,256.02 : x
  2. Step 2: Convert to fraction form
    45,221.52/67,845.55 = 20,256.02/x
  3. Step 3: Cross multiply
    45,221.52x = 67,845.55 × 20,256.02
  4. Step 4: Simplify right side
    45,221.52x = 1,374,280,817.71
  5. Step 5: Solve for x
    x = 1,374,280,817.71/45,221.52
  6. Step 6: Final answer
    x = 30,389.97

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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.