Home / 75,097.10-103,659.90-43,278.68

Finding the Fourth Proportional to 75,097.10, 103,659.90 and 43,278.68

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Solution

The fourth proportional to 75,097.10, 103,659.90 and 43,278.68 is: 59,739.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,097.10 : 103,659.90 = 43,278.68 : x
  2. Step 2: Convert to fraction form
    75,097.10/103,659.90 = 43,278.68/x
  3. Step 3: Cross multiply
    75,097.10x = 103,659.90 × 43,278.68
  4. Step 4: Simplify right side
    75,097.10x = 4,486,263,640.93
  5. Step 5: Solve for x
    x = 4,486,263,640.93/75,097.10
  6. Step 6: Final answer
    x = 59,739.51

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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.