Home / 47,879.10-71,818.65-43,286.40

Finding the Fourth Proportional to 47,879.10, 71,818.65 and 43,286.40

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Solution

The fourth proportional to 47,879.10, 71,818.65 and 43,286.40 is: 64,929.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,879.10 : 71,818.65 = 43,286.40 : x
  2. Step 2: Convert to fraction form
    47,879.10/71,818.65 = 43,286.40/x
  3. Step 3: Cross multiply
    47,879.10x = 71,818.65 × 43,286.40
  4. Step 4: Simplify right side
    47,879.10x = 3,108,770,811.36
  5. Step 5: Solve for x
    x = 3,108,770,811.36/47,879.10
  6. Step 6: Final answer
    x = 64,929.60

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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.