Home / 74,586.24-111,878.64-35,121.78

Finding the Fourth Proportional to 74,586.24, 111,878.64 and 35,121.78

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Solution

The fourth proportional to 74,586.24, 111,878.64 and 35,121.78 is: 52,682.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,586.24 : 111,878.64 = 35,121.78 : x
  2. Step 2: Convert to fraction form
    74,586.24/111,878.64 = 35,121.78/x
  3. Step 3: Cross multiply
    74,586.24x = 111,878.64 × 35,121.78
  4. Step 4: Simplify right side
    74,586.24x = 3,929,376,980.78
  5. Step 5: Solve for x
    x = 3,929,376,980.78/74,586.24
  6. Step 6: Final answer
    x = 52,682.33

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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.