Home / 81,339.04-122,029.60-47,633.54

Finding the Fourth Proportional to 81,339.04, 122,029.60 and 47,633.54

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Solution

The fourth proportional to 81,339.04, 122,029.60 and 47,633.54 is: 71,462.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,339.04 : 122,029.60 = 47,633.54 : x
  2. Step 2: Convert to fraction form
    81,339.04/122,029.60 = 47,633.54/x
  3. Step 3: Cross multiply
    81,339.04x = 122,029.60 × 47,633.54
  4. Step 4: Simplify right side
    81,339.04x = 5,812,701,832.78
  5. Step 5: Solve for x
    x = 5,812,701,832.78/81,339.04
  6. Step 6: Final answer
    x = 71,462.63

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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.