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Finding the Fourth Proportional to 68,681.25, 94,774.93 and 41,820.77

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Solution

The fourth proportional to 68,681.25, 94,774.93 and 41,820.77 is: 57,709.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,681.25 : 94,774.93 = 41,820.77 : x
  2. Step 2: Convert to fraction form
    68,681.25/94,774.93 = 41,820.77/x
  3. Step 3: Cross multiply
    68,681.25x = 94,774.93 × 41,820.77
  4. Step 4: Simplify right side
    68,681.25x = 3,963,560,681.68
  5. Step 5: Solve for x
    x = 3,963,560,681.68/68,681.25
  6. Step 6: Final answer
    x = 57,709.50

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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.