Home / 75,467.79-113,205.56-19,308.38

Finding the Fourth Proportional to 75,467.79, 113,205.56 and 19,308.38

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Solution

The fourth proportional to 75,467.79, 113,205.56 and 19,308.38 is: 28,963.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,467.79 : 113,205.56 = 19,308.38 : x
  2. Step 2: Convert to fraction form
    75,467.79/113,205.56 = 19,308.38/x
  3. Step 3: Cross multiply
    75,467.79x = 113,205.56 × 19,308.38
  4. Step 4: Simplify right side
    75,467.79x = 2,185,815,308.02
  5. Step 5: Solve for x
    x = 2,185,815,308.02/75,467.79
  6. Step 6: Final answer
    x = 28,963.55

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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.