Home / 81,738.51-122,606.98-48,434.60

Finding the Fourth Proportional to 81,738.51, 122,606.98 and 48,434.60

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Solution

The fourth proportional to 81,738.51, 122,606.98 and 48,434.60 is: 72,651.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,738.51 : 122,606.98 = 48,434.60 : x
  2. Step 2: Convert to fraction form
    81,738.51/122,606.98 = 48,434.60/x
  3. Step 3: Cross multiply
    81,738.51x = 122,606.98 × 48,434.60
  4. Step 4: Simplify right side
    81,738.51x = 5,938,420,218.94
  5. Step 5: Solve for x
    x = 5,938,420,218.94/81,738.51
  6. Step 6: Final answer
    x = 72,651.44

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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.