Home / 47,149.88-70,729.07-12,089.84

Finding the Fourth Proportional to 47,149.88, 70,729.07 and 12,089.84

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Solution

The fourth proportional to 47,149.88, 70,729.07 and 12,089.84 is: 18,135.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,149.88 : 70,729.07 = 12,089.84 : x
  2. Step 2: Convert to fraction form
    47,149.88/70,729.07 = 12,089.84/x
  3. Step 3: Cross multiply
    47,149.88x = 70,729.07 × 12,089.84
  4. Step 4: Simplify right side
    47,149.88x = 855,102,725.55
  5. Step 5: Solve for x
    x = 855,102,725.55/47,149.88
  6. Step 6: Final answer
    x = 18,135.84

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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.