Home / 47,186.26-70,779.12-12,125.98

Finding the Fourth Proportional to 47,186.26, 70,779.12 and 12,125.98

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Solution

The fourth proportional to 47,186.26, 70,779.12 and 12,125.98 is: 18,188.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,186.26 : 70,779.12 = 12,125.98 : x
  2. Step 2: Convert to fraction form
    47,186.26/70,779.12 = 12,125.98/x
  3. Step 3: Cross multiply
    47,186.26x = 70,779.12 × 12,125.98
  4. Step 4: Simplify right side
    47,186.26x = 858,266,193.54
  5. Step 5: Solve for x
    x = 858,266,193.54/47,186.26
  6. Step 6: Final answer
    x = 18,188.90

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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.