Home / 81,529.79-122,289.21-22,360.50

Finding the Fourth Proportional to 81,529.79, 122,289.21 and 22,360.50

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Solution

The fourth proportional to 81,529.79, 122,289.21 and 22,360.50 is: 33,539.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,529.79 : 122,289.21 = 22,360.50 : x
  2. Step 2: Convert to fraction form
    81,529.79/122,289.21 = 22,360.50/x
  3. Step 3: Cross multiply
    81,529.79x = 122,289.21 × 22,360.50
  4. Step 4: Simplify right side
    81,529.79x = 2,734,447,880.21
  5. Step 5: Solve for x
    x = 2,734,447,880.21/81,529.79
  6. Step 6: Final answer
    x = 33,539.25

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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.