Home / 51,873.13-77,829.30-20,305.75

Finding the Fourth Proportional to 51,873.13, 77,829.30 and 20,305.75

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Solution

The fourth proportional to 51,873.13, 77,829.30 and 20,305.75 is: 30,466.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,873.13 : 77,829.30 = 20,305.75 : x
  2. Step 2: Convert to fraction form
    51,873.13/77,829.30 = 20,305.75/x
  3. Step 3: Cross multiply
    51,873.13x = 77,829.30 × 20,305.75
  4. Step 4: Simplify right side
    51,873.13x = 1,580,381,919.33
  5. Step 5: Solve for x
    x = 1,580,381,919.33/51,873.13
  6. Step 6: Final answer
    x = 30,466.29

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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.