Home / 81,389.61-122,103.35-25,226.74

Finding the Fourth Proportional to 81,389.61, 122,103.35 and 25,226.74

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Solution

The fourth proportional to 81,389.61, 122,103.35 and 25,226.74 is: 37,845.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,389.61 : 122,103.35 = 25,226.74 : x
  2. Step 2: Convert to fraction form
    81,389.61/122,103.35 = 25,226.74/x
  3. Step 3: Cross multiply
    81,389.61x = 122,103.35 × 25,226.74
  4. Step 4: Simplify right side
    81,389.61x = 3,080,269,584.67
  5. Step 5: Solve for x
    x = 3,080,269,584.67/81,389.61
  6. Step 6: Final answer
    x = 37,845.98

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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.