Home / 82,039.77-122,985.68-29,436.89

Finding the Fourth Proportional to 82,039.77, 122,985.68 and 29,436.89

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Solution

The fourth proportional to 82,039.77, 122,985.68 and 29,436.89 is: 44,128.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,039.77 : 122,985.68 = 29,436.89 : x
  2. Step 2: Convert to fraction form
    82,039.77/122,985.68 = 29,436.89/x
  3. Step 3: Cross multiply
    82,039.77x = 122,985.68 × 29,436.89
  4. Step 4: Simplify right side
    82,039.77x = 3,620,315,171.62
  5. Step 5: Solve for x
    x = 3,620,315,171.62/82,039.77
  6. Step 6: Final answer
    x = 44,128.78

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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.