Home / 42,019.66-57,968.76-30,078.64

Finding the Fourth Proportional to 42,019.66, 57,968.76 and 30,078.64

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Solution

The fourth proportional to 42,019.66, 57,968.76 and 30,078.64 is: 41,495.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,019.66 : 57,968.76 = 30,078.64 : x
  2. Step 2: Convert to fraction form
    42,019.66/57,968.76 = 30,078.64/x
  3. Step 3: Cross multiply
    42,019.66x = 57,968.76 × 30,078.64
  4. Step 4: Simplify right side
    42,019.66x = 1,743,621,463.29
  5. Step 5: Solve for x
    x = 1,743,621,463.29/42,019.66
  6. Step 6: Final answer
    x = 41,495.37

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1.5x scale

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.