Home / 51,939.06-71,675.87-28,065.72

Finding the Fourth Proportional to 51,939.06, 71,675.87 and 28,065.72

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Solution

The fourth proportional to 51,939.06, 71,675.87 and 28,065.72 is: 38,730.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,939.06 : 71,675.87 = 28,065.72 : x
  2. Step 2: Convert to fraction form
    51,939.06/71,675.87 = 28,065.72/x
  3. Step 3: Cross multiply
    51,939.06x = 71,675.87 × 28,065.72
  4. Step 4: Simplify right side
    51,939.06x = 2,011,634,757.85
  5. Step 5: Solve for x
    x = 2,011,634,757.85/51,939.06
  6. Step 6: Final answer
    x = 38,730.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.