Home / 74,727.25-103,121.54-40,736.40

Finding the Fourth Proportional to 74,727.25, 103,121.54 and 40,736.40

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Solution

The fourth proportional to 74,727.25, 103,121.54 and 40,736.40 is: 56,215.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,727.25 : 103,121.54 = 40,736.40 : x
  2. Step 2: Convert to fraction form
    74,727.25/103,121.54 = 40,736.40/x
  3. Step 3: Cross multiply
    74,727.25x = 103,121.54 × 40,736.40
  4. Step 4: Simplify right side
    74,727.25x = 4,200,800,302.06
  5. Step 5: Solve for x
    x = 4,200,800,302.06/74,727.25
  6. Step 6: Final answer
    x = 56,215.11

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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.