Home / 75,278.54-112,819.37-30,853.28

Finding the Fourth Proportional to 75,278.54, 112,819.37 and 30,853.28

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Solution

The fourth proportional to 75,278.54, 112,819.37 and 30,853.28 is: 46,239.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,278.54 : 112,819.37 = 30,853.28 : x
  2. Step 2: Convert to fraction form
    75,278.54/112,819.37 = 30,853.28/x
  3. Step 3: Cross multiply
    75,278.54x = 112,819.37 × 30,853.28
  4. Step 4: Simplify right side
    75,278.54x = 3,480,846,893.67
  5. Step 5: Solve for x
    x = 3,480,846,893.67/75,278.54
  6. Step 6: Final answer
    x = 46,239.57

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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.