Home / 75,414.24-113,121.31-19,254.36

Finding the Fourth Proportional to 75,414.24, 113,121.31 and 19,254.36

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Solution

The fourth proportional to 75,414.24, 113,121.31 and 19,254.36 is: 28,881.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,414.24 : 113,121.31 = 19,254.36 : x
  2. Step 2: Convert to fraction form
    75,414.24/113,121.31 = 19,254.36/x
  3. Step 3: Cross multiply
    75,414.24x = 113,121.31 × 19,254.36
  4. Step 4: Simplify right side
    75,414.24x = 2,178,078,202.28
  5. Step 5: Solve for x
    x = 2,178,078,202.28/75,414.24
  6. Step 6: Final answer
    x = 28,881.52

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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.