Home / 81,774.35-122,678.00-29,182.47

Finding the Fourth Proportional to 81,774.35, 122,678.00 and 29,182.47

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Solution

The fourth proportional to 81,774.35, 122,678.00 and 29,182.47 is: 43,779.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,774.35 : 122,678.00 = 29,182.47 : x
  2. Step 2: Convert to fraction form
    81,774.35/122,678.00 = 29,182.47/x
  3. Step 3: Cross multiply
    81,774.35x = 122,678.00 × 29,182.47
  4. Step 4: Simplify right side
    81,774.35x = 3,580,047,127.62
  5. Step 5: Solve for x
    x = 3,580,047,127.62/81,774.35
  6. Step 6: Final answer
    x = 43,779.58

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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.