Home / 81,173.45-121,771.61-25,018.10

Finding the Fourth Proportional to 81,173.45, 121,771.61 and 25,018.10

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Solution

The fourth proportional to 81,173.45, 121,771.61 and 25,018.10 is: 37,530.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,173.45 : 121,771.61 = 25,018.10 : x
  2. Step 2: Convert to fraction form
    81,173.45/121,771.61 = 25,018.10/x
  3. Step 3: Cross multiply
    81,173.45x = 121,771.61 × 25,018.10
  4. Step 4: Simplify right side
    81,173.45x = 3,046,493,582.19
  5. Step 5: Solve for x
    x = 3,046,493,582.19/81,173.45
  6. Step 6: Final answer
    x = 37,530.67

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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.