Home / 55,918.56-77,169.08-30,426.52

Finding the Fourth Proportional to 55,918.56, 77,169.08 and 30,426.52

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Solution

The fourth proportional to 55,918.56, 77,169.08 and 30,426.52 is: 41,989.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,918.56 : 77,169.08 = 30,426.52 : x
  2. Step 2: Convert to fraction form
    55,918.56/77,169.08 = 30,426.52/x
  3. Step 3: Cross multiply
    55,918.56x = 77,169.08 × 30,426.52
  4. Step 4: Simplify right side
    55,918.56x = 2,347,986,556.00
  5. Step 5: Solve for x
    x = 2,347,986,556.00/55,918.56
  6. Step 6: Final answer
    x = 41,989.40

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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.