Home / 81,682.76-122,530.98-22,518.38

Finding the Fourth Proportional to 81,682.76, 122,530.98 and 22,518.38

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Solution

The fourth proportional to 81,682.76, 122,530.98 and 22,518.38 is: 33,779.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,682.76 : 122,530.98 = 22,518.38 : x
  2. Step 2: Convert to fraction form
    81,682.76/122,530.98 = 22,518.38/x
  3. Step 3: Cross multiply
    81,682.76x = 122,530.98 × 22,518.38
  4. Step 4: Simplify right side
    81,682.76x = 2,759,199,169.41
  5. Step 5: Solve for x
    x = 2,759,199,169.41/81,682.76
  6. Step 6: Final answer
    x = 33,779.46

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1.5x scale

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.