Home / 51,390.48-77,091.90-18,103.67

Finding the Fourth Proportional to 51,390.48, 77,091.90 and 18,103.67

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Solution

The fourth proportional to 51,390.48, 77,091.90 and 18,103.67 is: 27,157.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,390.48 : 77,091.90 = 18,103.67 : x
  2. Step 2: Convert to fraction form
    51,390.48/77,091.90 = 18,103.67/x
  3. Step 3: Cross multiply
    51,390.48x = 77,091.90 × 18,103.67
  4. Step 4: Simplify right side
    51,390.48x = 1,395,645,841.30
  5. Step 5: Solve for x
    x = 1,395,645,841.30/51,390.48
  6. Step 6: Final answer
    x = 27,157.67

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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.