Home / 51,872.63-77,828.55-20,305.25

Finding the Fourth Proportional to 51,872.63, 77,828.55 and 20,305.25

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Solution

The fourth proportional to 51,872.63, 77,828.55 and 20,305.25 is: 30,465.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,872.63 : 77,828.55 = 20,305.25 : x
  2. Step 2: Convert to fraction form
    51,872.63/77,828.55 = 20,305.25/x
  3. Step 3: Cross multiply
    51,872.63x = 77,828.55 × 20,305.25
  4. Step 4: Simplify right side
    51,872.63x = 1,580,327,775.74
  5. Step 5: Solve for x
    x = 1,580,327,775.74/51,872.63
  6. Step 6: Final answer
    x = 30,465.54

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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.