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Finding the Fourth Proportional to 74,676.57, 111,990.51 and 27,280.77

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Solution

The fourth proportional to 74,676.57, 111,990.51 and 27,280.77 is: 40,912.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,676.57 : 111,990.51 = 27,280.77 : x
  2. Step 2: Convert to fraction form
    74,676.57/111,990.51 = 27,280.77/x
  3. Step 3: Cross multiply
    74,676.57x = 111,990.51 × 27,280.77
  4. Step 4: Simplify right side
    74,676.57x = 3,055,187,345.49
  5. Step 5: Solve for x
    x = 3,055,187,345.49/74,676.57
  6. Step 6: Final answer
    x = 40,912.26

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1.5x scale

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.