Home / 54,796.16-75,614.40-30,928.64

Finding the Fourth Proportional to 54,796.16, 75,614.40 and 30,928.64

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Solution

The fourth proportional to 54,796.16, 75,614.40 and 30,928.64 is: 42,679.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,796.16 : 75,614.40 = 30,928.64 : x
  2. Step 2: Convert to fraction form
    54,796.16/75,614.40 = 30,928.64/x
  3. Step 3: Cross multiply
    54,796.16x = 75,614.40 × 30,928.64
  4. Step 4: Simplify right side
    54,796.16x = 2,338,650,556.42
  5. Step 5: Solve for x
    x = 2,338,650,556.42/54,796.16
  6. Step 6: Final answer
    x = 42,679.10

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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.