Home / 74,998.43-112,374.62-45,424.72

Finding the Fourth Proportional to 74,998.43, 112,374.62 and 45,424.72

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Solution

The fourth proportional to 74,998.43, 112,374.62 and 45,424.72 is: 68,062.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,998.43 : 112,374.62 = 45,424.72 : x
  2. Step 2: Convert to fraction form
    74,998.43/112,374.62 = 45,424.72/x
  3. Step 3: Cross multiply
    74,998.43x = 112,374.62 × 45,424.72
  4. Step 4: Simplify right side
    74,998.43x = 5,104,585,648.61
  5. Step 5: Solve for x
    x = 5,104,585,648.61/74,998.43
  6. Step 6: Final answer
    x = 68,062.57

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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.