Home / 51,917.36-77,882.55-20,323.34

Finding the Fourth Proportional to 51,917.36, 77,882.55 and 20,323.34

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Solution

The fourth proportional to 51,917.36, 77,882.55 and 20,323.34 is: 30,487.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,917.36 : 77,882.55 = 20,323.34 : x
  2. Step 2: Convert to fraction form
    51,917.36/77,882.55 = 20,323.34/x
  3. Step 3: Cross multiply
    51,917.36x = 77,882.55 × 20,323.34
  4. Step 4: Simplify right side
    51,917.36x = 1,582,833,543.72
  5. Step 5: Solve for x
    x = 1,582,833,543.72/51,917.36
  6. Step 6: Final answer
    x = 30,487.56

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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.