Home / 55,976.80-83,963.40-18,538.60

Finding the Fourth Proportional to 55,976.80, 83,963.40 and 18,538.60

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Solution

The fourth proportional to 55,976.80, 83,963.40 and 18,538.60 is: 27,807.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,976.80 : 83,963.40 = 18,538.60 : x
  2. Step 2: Convert to fraction form
    55,976.80/83,963.40 = 18,538.60/x
  3. Step 3: Cross multiply
    55,976.80x = 83,963.40 × 18,538.60
  4. Step 4: Simplify right side
    55,976.80x = 1,556,563,887.24
  5. Step 5: Solve for x
    x = 1,556,563,887.24/55,976.80
  6. Step 6: Final answer
    x = 27,807.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.