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Finding the Fourth Proportional to 81,757.53, 112,824.36 and 45,953.60

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Solution

The fourth proportional to 81,757.53, 112,824.36 and 45,953.60 is: 63,415.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,757.53 : 112,824.36 = 45,953.60 : x
  2. Step 2: Convert to fraction form
    81,757.53/112,824.36 = 45,953.60/x
  3. Step 3: Cross multiply
    81,757.53x = 112,824.36 × 45,953.60
  4. Step 4: Simplify right side
    81,757.53x = 5,184,684,945.57
  5. Step 5: Solve for x
    x = 5,184,684,945.57/81,757.53
  6. Step 6: Final answer
    x = 63,415.38

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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.