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Finding the Fourth Proportional to 101,620.92, 152,406.78 and 42,424.44

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Solution

The fourth proportional to 101,620.92, 152,406.78 and 42,424.44 is: 63,626.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,620.92 : 152,406.78 = 42,424.44 : x
  2. Step 2: Convert to fraction form
    101,620.92/152,406.78 = 42,424.44/x
  3. Step 3: Cross multiply
    101,620.92x = 152,406.78 × 42,424.44
  4. Step 4: Simplify right side
    101,620.92x = 6,465,772,293.70
  5. Step 5: Solve for x
    x = 6,465,772,293.70/101,620.92
  6. Step 6: Final answer
    x = 63,626.39

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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.