Home / 52,078.28-78,121.47-17,021.48

Finding the Fourth Proportional to 52,078.28, 78,121.47 and 17,021.48

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Solution

The fourth proportional to 52,078.28, 78,121.47 and 17,021.48 is: 25,533.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,078.28 : 78,121.47 = 17,021.48 : x
  2. Step 2: Convert to fraction form
    52,078.28/78,121.47 = 17,021.48/x
  3. Step 3: Cross multiply
    52,078.28x = 78,121.47 × 17,021.48
  4. Step 4: Simplify right side
    52,078.28x = 1,329,742,758.76
  5. Step 5: Solve for x
    x = 1,329,742,758.76/52,078.28
  6. Step 6: Final answer
    x = 25,533.54

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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.