Home / 74,650.92-111,980.46-30,271.08

Finding the Fourth Proportional to 74,650.92, 111,980.46 and 30,271.08

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Solution

The fourth proportional to 74,650.92, 111,980.46 and 30,271.08 is: 45,408.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,650.92 : 111,980.46 = 30,271.08 : x
  2. Step 2: Convert to fraction form
    74,650.92/111,980.46 = 30,271.08/x
  3. Step 3: Cross multiply
    74,650.92x = 111,980.46 × 30,271.08
  4. Step 4: Simplify right side
    74,650.92x = 3,389,769,463.10
  5. Step 5: Solve for x
    x = 3,389,769,463.10/74,650.92
  6. Step 6: Final answer
    x = 45,408.27

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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.