Home / 47,910.47-71,806.16-30,385.31

Finding the Fourth Proportional to 47,910.47, 71,806.16 and 30,385.31

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Solution

The fourth proportional to 47,910.47, 71,806.16 and 30,385.31 is: 45,540.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,910.47 : 71,806.16 = 30,385.31 : x
  2. Step 2: Convert to fraction form
    47,910.47/71,806.16 = 30,385.31/x
  3. Step 3: Cross multiply
    47,910.47x = 71,806.16 × 30,385.31
  4. Step 4: Simplify right side
    47,910.47x = 2,181,852,148.44
  5. Step 5: Solve for x
    x = 2,181,852,148.44/47,910.47
  6. Step 6: Final answer
    x = 45,540.20

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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.