Home / 75,093.39-103,628.49-40,638.09

Finding the Fourth Proportional to 75,093.39, 103,628.49 and 40,638.09

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Solution

The fourth proportional to 75,093.39, 103,628.49 and 40,638.09 is: 56,080.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,093.39 : 103,628.49 = 40,638.09 : x
  2. Step 2: Convert to fraction form
    75,093.39/103,628.49 = 40,638.09/x
  3. Step 3: Cross multiply
    75,093.39x = 103,628.49 × 40,638.09
  4. Step 4: Simplify right side
    75,093.39x = 4,211,264,083.52
  5. Step 5: Solve for x
    x = 4,211,264,083.52/75,093.39
  6. Step 6: Final answer
    x = 56,080.36

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1.5x scale

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.