Home / 58,139.20-87,208.80-41,408.65

Finding the Fourth Proportional to 58,139.20, 87,208.80 and 41,408.65

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Solution

The fourth proportional to 58,139.20, 87,208.80 and 41,408.65 is: 62,112.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,139.20 : 87,208.80 = 41,408.65 : x
  2. Step 2: Convert to fraction form
    58,139.20/87,208.80 = 41,408.65/x
  3. Step 3: Cross multiply
    58,139.20x = 87,208.80 × 41,408.65
  4. Step 4: Simplify right side
    58,139.20x = 3,611,198,676.12
  5. Step 5: Solve for x
    x = 3,611,198,676.12/58,139.20
  6. Step 6: Final answer
    x = 62,112.98

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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.