Home / 54,840.80-75,679.68-30,968.48

Finding the Fourth Proportional to 54,840.80, 75,679.68 and 30,968.48

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Solution

The fourth proportional to 54,840.80, 75,679.68 and 30,968.48 is: 42,736.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,840.80 : 75,679.68 = 30,968.48 : x
  2. Step 2: Convert to fraction form
    54,840.80/75,679.68 = 30,968.48/x
  3. Step 3: Cross multiply
    54,840.80x = 75,679.68 × 30,968.48
  4. Step 4: Simplify right side
    54,840.80x = 2,343,684,656.49
  5. Step 5: Solve for x
    x = 2,343,684,656.49/54,840.80
  6. Step 6: Final answer
    x = 42,736.15

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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.