Home / 74,984.54-103,478.39-40,993.02

Finding the Fourth Proportional to 74,984.54, 103,478.39 and 40,993.02

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Solution

The fourth proportional to 74,984.54, 103,478.39 and 40,993.02 is: 56,570.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,984.54 : 103,478.39 = 40,993.02 : x
  2. Step 2: Convert to fraction form
    74,984.54/103,478.39 = 40,993.02/x
  3. Step 3: Cross multiply
    74,984.54x = 103,478.39 × 40,993.02
  4. Step 4: Simplify right side
    74,984.54x = 4,241,891,505.87
  5. Step 5: Solve for x
    x = 4,241,891,505.87/74,984.54
  6. Step 6: Final answer
    x = 56,570.22

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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.