Home / 91,087.34-136,650.44-31,926.56

Finding the Fourth Proportional to 91,087.34, 136,650.44 and 31,926.56

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Solution

The fourth proportional to 91,087.34, 136,650.44 and 31,926.56 is: 47,896.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,087.34 : 136,650.44 = 31,926.56 : x
  2. Step 2: Convert to fraction form
    91,087.34/136,650.44 = 31,926.56/x
  3. Step 3: Cross multiply
    91,087.34x = 136,650.44 × 31,926.56
  4. Step 4: Simplify right side
    91,087.34x = 4,362,777,868.25
  5. Step 5: Solve for x
    x = 4,362,777,868.25/91,087.34
  6. Step 6: Final answer
    x = 47,896.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.