Home / 81,674.83-122,438.26-56,726.65

Finding the Fourth Proportional to 81,674.83, 122,438.26 and 56,726.65

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Solution

The fourth proportional to 81,674.83, 122,438.26 and 56,726.65 is: 85,038.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,674.83 : 122,438.26 = 56,726.65 : x
  2. Step 2: Convert to fraction form
    81,674.83/122,438.26 = 56,726.65/x
  3. Step 3: Cross multiply
    81,674.83x = 122,438.26 × 56,726.65
  4. Step 4: Simplify right side
    81,674.83x = 6,945,511,425.80
  5. Step 5: Solve for x
    x = 6,945,511,425.80/81,674.83
  6. Step 6: Final answer
    x = 85,038.58

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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.