Home / 67,339.38-100,999.34-20,579.70

Finding the Fourth Proportional to 67,339.38, 100,999.34 and 20,579.70

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Solution

The fourth proportional to 67,339.38, 100,999.34 and 20,579.70 is: 30,866.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,339.38 : 100,999.34 = 20,579.70 : x
  2. Step 2: Convert to fraction form
    67,339.38/100,999.34 = 20,579.70/x
  3. Step 3: Cross multiply
    67,339.38x = 100,999.34 × 20,579.70
  4. Step 4: Simplify right side
    67,339.38x = 2,078,536,117.40
  5. Step 5: Solve for x
    x = 2,078,536,117.40/67,339.38
  6. Step 6: Final answer
    x = 30,866.58

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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.