Home / 72,126.24-108,176-19,528.88

Finding the Fourth Proportional to 72,126.24, 108,176 and 19,528.88

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Solution

The fourth proportional to 72,126.24, 108,176 and 19,528.88 is: 29,289.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,126.24 : 108,176 = 19,528.88 : x
  2. Step 2: Convert to fraction form
    72,126.24/108,176 = 19,528.88/x
  3. Step 3: Cross multiply
    72,126.24x = 108,176 × 19,528.88
  4. Step 4: Simplify right side
    72,126.24x = 2,112,556,122.88
  5. Step 5: Solve for x
    x = 2,112,556,122.88/72,126.24
  6. Step 6: Final answer
    x = 29,289.70

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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.