Home / 61,143.08-91,714.62-40,361.72

Finding the Fourth Proportional to 61,143.08, 91,714.62 and 40,361.72

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Solution

The fourth proportional to 61,143.08, 91,714.62 and 40,361.72 is: 60,542.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,143.08 : 91,714.62 = 40,361.72 : x
  2. Step 2: Convert to fraction form
    61,143.08/91,714.62 = 40,361.72/x
  3. Step 3: Cross multiply
    61,143.08x = 91,714.62 × 40,361.72
  4. Step 4: Simplify right side
    61,143.08x = 3,701,759,812.35
  5. Step 5: Solve for x
    x = 3,701,759,812.35/61,143.08
  6. Step 6: Final answer
    x = 60,542.58

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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.