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Finding the Fourth Proportional to 81,675.33, 112,749.84 and 54,496.59

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Solution

The fourth proportional to 81,675.33, 112,749.84 and 54,496.59 is: 75,230.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,675.33 : 112,749.84 = 54,496.59 : x
  2. Step 2: Convert to fraction form
    81,675.33/112,749.84 = 54,496.59/x
  3. Step 3: Cross multiply
    81,675.33x = 112,749.84 × 54,496.59
  4. Step 4: Simplify right side
    81,675.33x = 6,144,481,803.05
  5. Step 5: Solve for x
    x = 6,144,481,803.05/81,675.33
  6. Step 6: Final answer
    x = 75,230.57

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1.5x scale

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.