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Finding the Fourth Proportional to 100,576.94, 150,898.20 and 47,979.60

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Solution

The fourth proportional to 100,576.94, 150,898.20 and 47,979.60 is: 71,985.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,576.94 : 150,898.20 = 47,979.60 : x
  2. Step 2: Convert to fraction form
    100,576.94/150,898.20 = 47,979.60/x
  3. Step 3: Cross multiply
    100,576.94x = 150,898.20 × 47,979.60
  4. Step 4: Simplify right side
    100,576.94x = 7,240,035,276.72
  5. Step 5: Solve for x
    x = 7,240,035,276.72/100,576.94
  6. Step 6: Final answer
    x = 71,985.04

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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.