Home / 49,921.52-74,882.24-12,985.52

Finding the Fourth Proportional to 49,921.52, 74,882.24 and 12,985.52

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Solution

The fourth proportional to 49,921.52, 74,882.24 and 12,985.52 is: 19,478.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,921.52 : 74,882.24 = 12,985.52 : x
  2. Step 2: Convert to fraction form
    49,921.52/74,882.24 = 12,985.52/x
  3. Step 3: Cross multiply
    49,921.52x = 74,882.24 × 12,985.52
  4. Step 4: Simplify right side
    49,921.52x = 972,384,825.16
  5. Step 5: Solve for x
    x = 972,384,825.16/49,921.52
  6. Step 6: Final answer
    x = 19,478.27

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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.