Home / 47,860.20-71,822.70-28,117.80

Finding the Fourth Proportional to 47,860.20, 71,822.70 and 28,117.80

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Solution

The fourth proportional to 47,860.20, 71,822.70 and 28,117.80 is: 42,195.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,860.20 : 71,822.70 = 28,117.80 : x
  2. Step 2: Convert to fraction form
    47,860.20/71,822.70 = 28,117.80/x
  3. Step 3: Cross multiply
    47,860.20x = 71,822.70 × 28,117.80
  4. Step 4: Simplify right side
    47,860.20x = 2,019,496,314.06
  5. Step 5: Solve for x
    x = 2,019,496,314.06/47,860.20
  6. Step 6: Final answer
    x = 42,195.73

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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.