Home / 43,164.45-64,750.48-13,185.45

Finding the Fourth Proportional to 43,164.45, 64,750.48 and 13,185.45

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Solution

The fourth proportional to 43,164.45, 64,750.48 and 13,185.45 is: 19,779.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,164.45 : 64,750.48 = 13,185.45 : x
  2. Step 2: Convert to fraction form
    43,164.45/64,750.48 = 13,185.45/x
  3. Step 3: Cross multiply
    43,164.45x = 64,750.48 × 13,185.45
  4. Step 4: Simplify right side
    43,164.45x = 853,764,183.55
  5. Step 5: Solve for x
    x = 853,764,183.55/43,164.45
  6. Step 6: Final answer
    x = 19,779.34

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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.