Home / 72,297.30-108,435.33-42,325.38

Finding the Fourth Proportional to 72,297.30, 108,435.33 and 42,325.38

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Solution

The fourth proportional to 72,297.30, 108,435.33 and 42,325.38 is: 63,481.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,297.30 : 108,435.33 = 42,325.38 : x
  2. Step 2: Convert to fraction form
    72,297.30/108,435.33 = 42,325.38/x
  3. Step 3: Cross multiply
    72,297.30x = 108,435.33 × 42,325.38
  4. Step 4: Simplify right side
    72,297.30x = 4,589,566,547.68
  5. Step 5: Solve for x
    x = 4,589,566,547.68/72,297.30
  6. Step 6: Final answer
    x = 63,481.85

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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.