Home / 272,037.75-408,056.10-72,358.35

Finding the Fourth Proportional to 272,037.75, 408,056.10 and 72,358.35

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Solution

The fourth proportional to 272,037.75, 408,056.10 and 72,358.35 is: 108,537.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,037.75 : 408,056.10 = 72,358.35 : x
  2. Step 2: Convert to fraction form
    272,037.75/408,056.10 = 72,358.35/x
  3. Step 3: Cross multiply
    272,037.75x = 408,056.10 × 72,358.35
  4. Step 4: Simplify right side
    272,037.75x = 29,526,266,103.44
  5. Step 5: Solve for x
    x = 29,526,266,103.44/272,037.75
  6. Step 6: Final answer
    x = 108,537.39

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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.