Home / 80,033.10-120,124.98-40,618.50

Finding the Fourth Proportional to 80,033.10, 120,124.98 and 40,618.50

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Solution

The fourth proportional to 80,033.10, 120,124.98 and 40,618.50 is: 60,965.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,033.10 : 120,124.98 = 40,618.50 : x
  2. Step 2: Convert to fraction form
    80,033.10/120,124.98 = 40,618.50/x
  3. Step 3: Cross multiply
    80,033.10x = 120,124.98 × 40,618.50
  4. Step 4: Simplify right side
    80,033.10x = 4,879,296,500.13
  5. Step 5: Solve for x
    x = 4,879,296,500.13/80,033.10
  6. Step 6: Final answer
    x = 60,965.98

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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.