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Finding the Fourth Proportional to 81,334.86, 112,242.08 and 45,524.87

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Solution

The fourth proportional to 81,334.86, 112,242.08 and 45,524.87 is: 62,824.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,334.86 : 112,242.08 = 45,524.87 : x
  2. Step 2: Convert to fraction form
    81,334.86/112,242.08 = 45,524.87/x
  3. Step 3: Cross multiply
    81,334.86x = 112,242.08 × 45,524.87
  4. Step 4: Simplify right side
    81,334.86x = 5,109,806,100.53
  5. Step 5: Solve for x
    x = 5,109,806,100.53/81,334.86
  6. Step 6: Final answer
    x = 62,824.31

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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.