Home / 75,110.90-103,653.07-43,279.52

Finding the Fourth Proportional to 75,110.90, 103,653.07 and 43,279.52

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Solution

The fourth proportional to 75,110.90, 103,653.07 and 43,279.52 is: 59,725.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,110.90 : 103,653.07 = 43,279.52 : x
  2. Step 2: Convert to fraction form
    75,110.90/103,653.07 = 43,279.52/x
  3. Step 3: Cross multiply
    75,110.90x = 103,653.07 × 43,279.52
  4. Step 4: Simplify right side
    75,110.90x = 4,486,054,489.66
  5. Step 5: Solve for x
    x = 4,486,054,489.66/75,110.90
  6. Step 6: Final answer
    x = 59,725.75

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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.