Home / 81,829.47-122,730.25-22,651.28

Finding the Fourth Proportional to 81,829.47, 122,730.25 and 22,651.28

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Solution

The fourth proportional to 81,829.47, 122,730.25 and 22,651.28 is: 33,973.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,829.47 : 122,730.25 = 22,651.28 : x
  2. Step 2: Convert to fraction form
    81,829.47/122,730.25 = 22,651.28/x
  3. Step 3: Cross multiply
    81,829.47x = 122,730.25 × 22,651.28
  4. Step 4: Simplify right side
    81,829.47x = 2,779,997,257.22
  5. Step 5: Solve for x
    x = 2,779,997,257.22/81,829.47
  6. Step 6: Final answer
    x = 33,973.06

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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.