Home / 51,386.00-77,079.60-20,199.38

Finding the Fourth Proportional to 51,386.00, 77,079.60 and 20,199.38

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Solution

The fourth proportional to 51,386.00, 77,079.60 and 20,199.38 is: 30,299.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,386.00 : 77,079.60 = 20,199.38 : x
  2. Step 2: Convert to fraction form
    51,386.00/77,079.60 = 20,199.38/x
  3. Step 3: Cross multiply
    51,386.00x = 77,079.60 × 20,199.38
  4. Step 4: Simplify right side
    51,386.00x = 1,556,959,745.25
  5. Step 5: Solve for x
    x = 1,556,959,745.25/51,386.00
  6. Step 6: Final answer
    x = 30,299.30

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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.