Home / 51,321.55-76,986.69-18,038.74

Finding the Fourth Proportional to 51,321.55, 76,986.69 and 18,038.74

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Solution

The fourth proportional to 51,321.55, 76,986.69 and 18,038.74 is: 27,059.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,321.55 : 76,986.69 = 18,038.74 : x
  2. Step 2: Convert to fraction form
    51,321.55/76,986.69 = 18,038.74/x
  3. Step 3: Cross multiply
    51,321.55x = 76,986.69 × 18,038.74
  4. Step 4: Simplify right side
    51,321.55x = 1,388,742,884.37
  5. Step 5: Solve for x
    x = 1,388,742,884.37/51,321.55
  6. Step 6: Final answer
    x = 27,059.64

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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.