Home / 81,556.50-122,352.35-25,395.46

Finding the Fourth Proportional to 81,556.50, 122,352.35 and 25,395.46

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Solution

The fourth proportional to 81,556.50, 122,352.35 and 25,395.46 is: 38,098.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,556.50 : 122,352.35 = 25,395.46 : x
  2. Step 2: Convert to fraction form
    81,556.50/122,352.35 = 25,395.46/x
  3. Step 3: Cross multiply
    81,556.50x = 122,352.35 × 25,395.46
  4. Step 4: Simplify right side
    81,556.50x = 3,107,194,210.33
  5. Step 5: Solve for x
    x = 3,107,194,210.33/81,556.50
  6. Step 6: Final answer
    x = 38,098.67

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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.