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Finding the Fourth Proportional to 75,273.88, 112,910.87 and 19,118.20

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Solution

The fourth proportional to 75,273.88, 112,910.87 and 19,118.20 is: 28,677.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,273.88 : 112,910.87 = 19,118.20 : x
  2. Step 2: Convert to fraction form
    75,273.88/112,910.87 = 19,118.20/x
  3. Step 3: Cross multiply
    75,273.88x = 112,910.87 × 19,118.20
  4. Step 4: Simplify right side
    75,273.88x = 2,158,652,594.83
  5. Step 5: Solve for x
    x = 2,158,652,594.83/75,273.88
  6. Step 6: Final answer
    x = 28,677.31

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1.5x scale

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.