Home / 51,543.54-77,325.03-20,381.22

Finding the Fourth Proportional to 51,543.54, 77,325.03 and 20,381.22

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Solution

The fourth proportional to 51,543.54, 77,325.03 and 20,381.22 is: 30,575.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,543.54 : 77,325.03 = 20,381.22 : x
  2. Step 2: Convert to fraction form
    51,543.54/77,325.03 = 20,381.22/x
  3. Step 3: Cross multiply
    51,543.54x = 77,325.03 × 20,381.22
  4. Step 4: Simplify right side
    51,543.54x = 1,575,978,447.94
  5. Step 5: Solve for x
    x = 1,575,978,447.94/51,543.54
  6. Step 6: Final answer
    x = 30,575.67

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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.