Home / 81,811.37-122,703.39-22,653.02

Finding the Fourth Proportional to 81,811.37, 122,703.39 and 22,653.02

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Solution

The fourth proportional to 81,811.37, 122,703.39 and 22,653.02 is: 33,975.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,811.37 : 122,703.39 = 22,653.02 : x
  2. Step 2: Convert to fraction form
    81,811.37/122,703.39 = 22,653.02/x
  3. Step 3: Cross multiply
    81,811.37x = 122,703.39 × 22,653.02
  4. Step 4: Simplify right side
    81,811.37x = 2,779,602,234.47
  5. Step 5: Solve for x
    x = 2,779,602,234.47/81,811.37
  6. Step 6: Final answer
    x = 33,975.74

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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.