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Finding the Fourth Proportional to 49,481.52, 74,203.86 and 19,889.40

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Solution

The fourth proportional to 49,481.52, 74,203.86 and 19,889.40 is: 29,826.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,481.52 : 74,203.86 = 19,889.40 : x
  2. Step 2: Convert to fraction form
    49,481.52/74,203.86 = 19,889.40/x
  3. Step 3: Cross multiply
    49,481.52x = 74,203.86 × 19,889.40
  4. Step 4: Simplify right side
    49,481.52x = 1,475,870,253.08
  5. Step 5: Solve for x
    x = 1,475,870,253.08/49,481.52
  6. Step 6: Final answer
    x = 29,826.70

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1.5x scale

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.