Home / 55,986.40-83,979.60-18,536.40

Finding the Fourth Proportional to 55,986.40, 83,979.60 and 18,536.40

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Solution

The fourth proportional to 55,986.40, 83,979.60 and 18,536.40 is: 27,804.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,986.40 : 83,979.60 = 18,536.40 : x
  2. Step 2: Convert to fraction form
    55,986.40/83,979.60 = 18,536.40/x
  3. Step 3: Cross multiply
    55,986.40x = 83,979.60 × 18,536.40
  4. Step 4: Simplify right side
    55,986.40x = 1,556,679,457.44
  5. Step 5: Solve for x
    x = 1,556,679,457.44/55,986.40
  6. Step 6: Final answer
    x = 27,804.60

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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.