Home / 47,190.56-70,784.04-12,130.52

Finding the Fourth Proportional to 47,190.56, 70,784.04 and 12,130.52

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Solution

The fourth proportional to 47,190.56, 70,784.04 and 12,130.52 is: 18,195.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,190.56 : 70,784.04 = 12,130.52 : x
  2. Step 2: Convert to fraction form
    47,190.56/70,784.04 = 12,130.52/x
  3. Step 3: Cross multiply
    47,190.56x = 70,784.04 × 12,130.52
  4. Step 4: Simplify right side
    47,190.56x = 858,647,212.90
  5. Step 5: Solve for x
    x = 858,647,212.90/47,190.56
  6. Step 6: Final answer
    x = 18,195.32

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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.