Home / 47,511.20-71,218.20-27,779.60

Finding the Fourth Proportional to 47,511.20, 71,218.20 and 27,779.60

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Solution

The fourth proportional to 47,511.20, 71,218.20 and 27,779.60 is: 41,640.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,511.20 : 71,218.20 = 27,779.60 : x
  2. Step 2: Convert to fraction form
    47,511.20/71,218.20 = 27,779.60/x
  3. Step 3: Cross multiply
    47,511.20x = 71,218.20 × 27,779.60
  4. Step 4: Simplify right side
    47,511.20x = 1,978,413,108.72
  5. Step 5: Solve for x
    x = 1,978,413,108.72/47,511.20
  6. Step 6: Final answer
    x = 41,640.98

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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.