Home / 81,779.22-122,671.26-22,619.25

Finding the Fourth Proportional to 81,779.22, 122,671.26 and 22,619.25

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Solution

The fourth proportional to 81,779.22, 122,671.26 and 22,619.25 is: 33,929.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,779.22 : 122,671.26 = 22,619.25 : x
  2. Step 2: Convert to fraction form
    81,779.22/122,671.26 = 22,619.25/x
  3. Step 3: Cross multiply
    81,779.22x = 122,671.26 × 22,619.25
  4. Step 4: Simplify right side
    81,779.22x = 2,774,731,897.76
  5. Step 5: Solve for x
    x = 2,774,731,897.76/81,779.22
  6. Step 6: Final answer
    x = 33,929.55

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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.