Home / 68,941.06-95,136.15-42,128.44

Finding the Fourth Proportional to 68,941.06, 95,136.15 and 42,128.44

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Solution

The fourth proportional to 68,941.06, 95,136.15 and 42,128.44 is: 58,135.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,941.06 : 95,136.15 = 42,128.44 : x
  2. Step 2: Convert to fraction form
    68,941.06/95,136.15 = 42,128.44/x
  3. Step 3: Cross multiply
    68,941.06x = 95,136.15 × 42,128.44
  4. Step 4: Simplify right side
    68,941.06x = 4,007,937,587.11
  5. Step 5: Solve for x
    x = 4,007,937,587.11/68,941.06
  6. Step 6: Final answer
    x = 58,135.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.