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Finding the Fourth Proportional to 67,377.80, 101,139.60 and 37,853.30

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Solution

The fourth proportional to 67,377.80, 101,139.60 and 37,853.30 is: 56,820.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,377.80 : 101,139.60 = 37,853.30 : x
  2. Step 2: Convert to fraction form
    67,377.80/101,139.60 = 37,853.30/x
  3. Step 3: Cross multiply
    67,377.80x = 101,139.60 × 37,853.30
  4. Step 4: Simplify right side
    67,377.80x = 3,828,467,620.68
  5. Step 5: Solve for x
    x = 3,828,467,620.68/67,377.80
  6. Step 6: Final answer
    x = 56,820.91

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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.