Home / 47,151.12-70,729.20-12,091.08

Finding the Fourth Proportional to 47,151.12, 70,729.20 and 12,091.08

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Solution

The fourth proportional to 47,151.12, 70,729.20 and 12,091.08 is: 18,137.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,151.12 : 70,729.20 = 12,091.08 : x
  2. Step 2: Convert to fraction form
    47,151.12/70,729.20 = 12,091.08/x
  3. Step 3: Cross multiply
    47,151.12x = 70,729.20 × 12,091.08
  4. Step 4: Simplify right side
    47,151.12x = 855,192,415.54
  5. Step 5: Solve for x
    x = 855,192,415.54/47,151.12
  6. Step 6: Final answer
    x = 18,137.27

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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.