Home / 90,029.27-135,083.49-47,899.44

Finding the Fourth Proportional to 90,029.27, 135,083.49 and 47,899.44

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Solution

The fourth proportional to 90,029.27, 135,083.49 and 47,899.44 is: 71,870.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,029.27 : 135,083.49 = 47,899.44 : x
  2. Step 2: Convert to fraction form
    90,029.27/135,083.49 = 47,899.44/x
  3. Step 3: Cross multiply
    90,029.27x = 135,083.49 × 47,899.44
  4. Step 4: Simplify right side
    90,029.27x = 6,470,423,524.25
  5. Step 5: Solve for x
    x = 6,470,423,524.25/90,029.27
  6. Step 6: Final answer
    x = 71,870.22

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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.