Home / 64,811.78-97,217.66-20,441.98

Finding the Fourth Proportional to 64,811.78, 97,217.66 and 20,441.98

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Solution

The fourth proportional to 64,811.78, 97,217.66 and 20,441.98 is: 30,662.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,811.78 : 97,217.66 = 20,441.98 : x
  2. Step 2: Convert to fraction form
    64,811.78/97,217.66 = 20,441.98/x
  3. Step 3: Cross multiply
    64,811.78x = 97,217.66 × 20,441.98
  4. Step 4: Simplify right side
    64,811.78x = 1,987,321,461.37
  5. Step 5: Solve for x
    x = 1,987,321,461.37/64,811.78
  6. Step 6: Final answer
    x = 30,662.97

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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.