Home / 79,977.42-120,039.95-40,562.22

Finding the Fourth Proportional to 79,977.42, 120,039.95 and 40,562.22

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Solution

The fourth proportional to 79,977.42, 120,039.95 and 40,562.22 is: 60,880.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,977.42 : 120,039.95 = 40,562.22 : x
  2. Step 2: Convert to fraction form
    79,977.42/120,039.95 = 40,562.22/x
  3. Step 3: Cross multiply
    79,977.42x = 120,039.95 × 40,562.22
  4. Step 4: Simplify right side
    79,977.42x = 4,869,086,657.88
  5. Step 5: Solve for x
    x = 4,869,086,657.88/79,977.42
  6. Step 6: Final answer
    x = 60,880.77

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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.