Home / 81,563.77-122,344.38-28,294.54

Finding the Fourth Proportional to 81,563.77, 122,344.38 and 28,294.54

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Solution

The fourth proportional to 81,563.77, 122,344.38 and 28,294.54 is: 42,441.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,563.77 : 122,344.38 = 28,294.54 : x
  2. Step 2: Convert to fraction form
    81,563.77/122,344.38 = 28,294.54/x
  3. Step 3: Cross multiply
    81,563.77x = 122,344.38 × 28,294.54
  4. Step 4: Simplify right side
    81,563.77x = 3,461,677,953.69
  5. Step 5: Solve for x
    x = 3,461,677,953.69/81,563.77
  6. Step 6: Final answer
    x = 42,441.37

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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.