Home / 52,858.68-79,289.16-21,271.92

Finding the Fourth Proportional to 52,858.68, 79,289.16 and 21,271.92

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Solution

The fourth proportional to 52,858.68, 79,289.16 and 21,271.92 is: 31,908.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,858.68 : 79,289.16 = 21,271.92 : x
  2. Step 2: Convert to fraction form
    52,858.68/79,289.16 = 21,271.92/x
  3. Step 3: Cross multiply
    52,858.68x = 79,289.16 × 21,271.92
  4. Step 4: Simplify right side
    52,858.68x = 1,686,632,668.39
  5. Step 5: Solve for x
    x = 1,686,632,668.39/52,858.68
  6. Step 6: Final answer
    x = 31,908.34

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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.