Home / 91,028.84-136,562.76-31,866.44

Finding the Fourth Proportional to 91,028.84, 136,562.76 and 31,866.44

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Solution

The fourth proportional to 91,028.84, 136,562.76 and 31,866.44 is: 47,806.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,028.84 : 136,562.76 = 31,866.44 : x
  2. Step 2: Convert to fraction form
    91,028.84/136,562.76 = 31,866.44/x
  3. Step 3: Cross multiply
    91,028.84x = 136,562.76 × 31,866.44
  4. Step 4: Simplify right side
    91,028.84x = 4,351,768,314.96
  5. Step 5: Solve for x
    x = 4,351,768,314.96/91,028.84
  6. Step 6: Final answer
    x = 47,806.48

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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.