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Finding the Fourth Proportional to 75,296.97, 112,949.25 and 19,137.63

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Solution

The fourth proportional to 75,296.97, 112,949.25 and 19,137.63 is: 28,707.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,296.97 : 112,949.25 = 19,137.63 : x
  2. Step 2: Convert to fraction form
    75,296.97/112,949.25 = 19,137.63/x
  3. Step 3: Cross multiply
    75,296.97x = 112,949.25 × 19,137.63
  4. Step 4: Simplify right side
    75,296.97x = 2,161,580,955.28
  5. Step 5: Solve for x
    x = 2,161,580,955.28/75,296.97
  6. Step 6: Final answer
    x = 28,707.41

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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.