Home / 81,435.96-122,148.15-25,274.70

Finding the Fourth Proportional to 81,435.96, 122,148.15 and 25,274.70

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Solution

The fourth proportional to 81,435.96, 122,148.15 and 25,274.70 is: 37,910.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,435.96 : 122,148.15 = 25,274.70 : x
  2. Step 2: Convert to fraction form
    81,435.96/122,148.15 = 25,274.70/x
  3. Step 3: Cross multiply
    81,435.96x = 122,148.15 × 25,274.70
  4. Step 4: Simplify right side
    81,435.96x = 3,087,257,846.81
  5. Step 5: Solve for x
    x = 3,087,257,846.81/81,435.96
  6. Step 6: Final answer
    x = 37,910.25

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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.