Home / 47,187.26-70,780.62-12,126.98

Finding the Fourth Proportional to 47,187.26, 70,780.62 and 12,126.98

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Solution

The fourth proportional to 47,187.26, 70,780.62 and 12,126.98 is: 18,190.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,187.26 : 70,780.62 = 12,126.98 : x
  2. Step 2: Convert to fraction form
    47,187.26/70,780.62 = 12,126.98/x
  3. Step 3: Cross multiply
    47,187.26x = 70,780.62 × 12,126.98
  4. Step 4: Simplify right side
    47,187.26x = 858,355,163.13
  5. Step 5: Solve for x
    x = 858,355,163.13/47,187.26
  6. Step 6: Final answer
    x = 18,190.40

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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.