Home / 74,271.06-111,388.40-40,500.68

Finding the Fourth Proportional to 74,271.06, 111,388.40 and 40,500.68

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Solution

The fourth proportional to 74,271.06, 111,388.40 and 40,500.68 is: 60,741.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,271.06 : 111,388.40 = 40,500.68 : x
  2. Step 2: Convert to fraction form
    74,271.06/111,388.40 = 40,500.68/x
  3. Step 3: Cross multiply
    74,271.06x = 111,388.40 × 40,500.68
  4. Step 4: Simplify right side
    74,271.06x = 4,511,305,564.36
  5. Step 5: Solve for x
    x = 4,511,305,564.36/74,271.06
  6. Step 6: Final answer
    x = 60,741.10

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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.