Home / 47,419.85-71,133.87-12,359.50

Finding the Fourth Proportional to 47,419.85, 71,133.87 and 12,359.50

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Solution

The fourth proportional to 47,419.85, 71,133.87 and 12,359.50 is: 18,540.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,419.85 : 71,133.87 = 12,359.50 : x
  2. Step 2: Convert to fraction form
    47,419.85/71,133.87 = 12,359.50/x
  3. Step 3: Cross multiply
    47,419.85x = 71,133.87 × 12,359.50
  4. Step 4: Simplify right side
    47,419.85x = 879,179,035.37
  5. Step 5: Solve for x
    x = 879,179,035.37/47,419.85
  6. Step 6: Final answer
    x = 18,540.32

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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.