Home / 89,106.09-122,867.88-56,789.56

Finding the Fourth Proportional to 89,106.09, 122,867.88 and 56,789.56

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Solution

The fourth proportional to 89,106.09, 122,867.88 and 56,789.56 is: 78,306.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,106.09 : 122,867.88 = 56,789.56 : x
  2. Step 2: Convert to fraction form
    89,106.09/122,867.88 = 56,789.56/x
  3. Step 3: Cross multiply
    89,106.09x = 122,867.88 × 56,789.56
  4. Step 4: Simplify right side
    89,106.09x = 6,977,612,843.33
  5. Step 5: Solve for x
    x = 6,977,612,843.33/89,106.09
  6. Step 6: Final answer
    x = 78,306.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.