Home / 81,532.56-122,310.98-28,937.64

Finding the Fourth Proportional to 81,532.56, 122,310.98 and 28,937.64

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Solution

The fourth proportional to 81,532.56, 122,310.98 and 28,937.64 is: 43,410.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,532.56 : 122,310.98 = 28,937.64 : x
  2. Step 2: Convert to fraction form
    81,532.56/122,310.98 = 28,937.64/x
  3. Step 3: Cross multiply
    81,532.56x = 122,310.98 × 28,937.64
  4. Step 4: Simplify right side
    81,532.56x = 3,539,391,107.29
  5. Step 5: Solve for x
    x = 3,539,391,107.29/81,532.56
  6. Step 6: Final answer
    x = 43,410.77

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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.