Home / 45,164.12-67,749.68-13,571.71

Finding the Fourth Proportional to 45,164.12, 67,749.68 and 13,571.71

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Solution

The fourth proportional to 45,164.12, 67,749.68 and 13,571.71 is: 20,358.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,164.12 : 67,749.68 = 13,571.71 : x
  2. Step 2: Convert to fraction form
    45,164.12/67,749.68 = 13,571.71/x
  3. Step 3: Cross multiply
    45,164.12x = 67,749.68 × 13,571.71
  4. Step 4: Simplify right side
    45,164.12x = 919,479,009.55
  5. Step 5: Solve for x
    x = 919,479,009.55/45,164.12
  6. Step 6: Final answer
    x = 20,358.62

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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.