Home / 81,379.42-122,029.18-33,980.29

Finding the Fourth Proportional to 81,379.42, 122,029.18 and 33,980.29

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Solution

The fourth proportional to 81,379.42, 122,029.18 and 33,980.29 is: 50,953.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,379.42 : 122,029.18 = 33,980.29 : x
  2. Step 2: Convert to fraction form
    81,379.42/122,029.18 = 33,980.29/x
  3. Step 3: Cross multiply
    81,379.42x = 122,029.18 × 33,980.29
  4. Step 4: Simplify right side
    81,379.42x = 4,146,587,412.39
  5. Step 5: Solve for x
    x = 4,146,587,412.39/81,379.42
  6. Step 6: Final answer
    x = 50,953.76

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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.