Home / 75,165.72-112,789.86-43,614.36

Finding the Fourth Proportional to 75,165.72, 112,789.86 and 43,614.36

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Solution

The fourth proportional to 75,165.72, 112,789.86 and 43,614.36 is: 65,445.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,165.72 : 112,789.86 = 43,614.36 : x
  2. Step 2: Convert to fraction form
    75,165.72/112,789.86 = 43,614.36/x
  3. Step 3: Cross multiply
    75,165.72x = 112,789.86 × 43,614.36
  4. Step 4: Simplify right side
    75,165.72x = 4,919,257,558.39
  5. Step 5: Solve for x
    x = 4,919,257,558.39/75,165.72
  6. Step 6: Final answer
    x = 65,445.49

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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.