Home / 56,579.51-78,093.75-32,720

Finding the Fourth Proportional to 56,579.51, 78,093.75 and 32,720

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Solution

The fourth proportional to 56,579.51, 78,093.75 and 32,720 is: 45,161.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,579.51 : 78,093.75 = 32,720 : x
  2. Step 2: Convert to fraction form
    56,579.51/78,093.75 = 32,720/x
  3. Step 3: Cross multiply
    56,579.51x = 78,093.75 × 32,720
  4. Step 4: Simplify right side
    56,579.51x = 2,555,227,500
  5. Step 5: Solve for x
    x = 2,555,227,500/56,579.51
  6. Step 6: Final answer
    x = 45,161.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.