Home / 67,012.43-100,503.32-40,002.39

Finding the Fourth Proportional to 67,012.43, 100,503.32 and 40,002.39

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Solution

The fourth proportional to 67,012.43, 100,503.32 and 40,002.39 is: 59,994.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,012.43 : 100,503.32 = 40,002.39 : x
  2. Step 2: Convert to fraction form
    67,012.43/100,503.32 = 40,002.39/x
  3. Step 3: Cross multiply
    67,012.43x = 100,503.32 × 40,002.39
  4. Step 4: Simplify right side
    67,012.43x = 4,020,372,802.92
  5. Step 5: Solve for x
    x = 4,020,372,802.92/67,012.43
  6. Step 6: Final answer
    x = 59,994.44

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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.