Home / 81,675.12-122,348.60-37,240.74

Finding the Fourth Proportional to 81,675.12, 122,348.60 and 37,240.74

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Solution

The fourth proportional to 81,675.12, 122,348.60 and 37,240.74 is: 55,786.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,675.12 : 122,348.60 = 37,240.74 : x
  2. Step 2: Convert to fraction form
    81,675.12/122,348.60 = 37,240.74/x
  3. Step 3: Cross multiply
    81,675.12x = 122,348.60 × 37,240.74
  4. Step 4: Simplify right side
    81,675.12x = 4,556,352,401.96
  5. Step 5: Solve for x
    x = 4,556,352,401.96/81,675.12
  6. Step 6: Final answer
    x = 55,786.30

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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.