Home / 75,448.79-104,118.77-40,993.21

Finding the Fourth Proportional to 75,448.79, 104,118.77 and 40,993.21

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Solution

The fourth proportional to 75,448.79, 104,118.77 and 40,993.21 is: 56,570.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,448.79 : 104,118.77 = 40,993.21 : x
  2. Step 2: Convert to fraction form
    75,448.79/104,118.77 = 40,993.21/x
  3. Step 3: Cross multiply
    75,448.79x = 104,118.77 × 40,993.21
  4. Step 4: Simplify right side
    75,448.79x = 4,268,162,445.74
  5. Step 5: Solve for x
    x = 4,268,162,445.74/75,448.79
  6. Step 6: Final answer
    x = 56,570.33

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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.