Home / 45,269.67-67,905.89-21,579.81

Finding the Fourth Proportional to 45,269.67, 67,905.89 and 21,579.81

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Solution

The fourth proportional to 45,269.67, 67,905.89 and 21,579.81 is: 32,370.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,269.67 : 67,905.89 = 21,579.81 : x
  2. Step 2: Convert to fraction form
    45,269.67/67,905.89 = 21,579.81/x
  3. Step 3: Cross multiply
    45,269.67x = 67,905.89 × 21,579.81
  4. Step 4: Simplify right side
    45,269.67x = 1,465,396,204.08
  5. Step 5: Solve for x
    x = 1,465,396,204.08/45,269.67
  6. Step 6: Final answer
    x = 32,370.38

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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.