Home / 79,925.42-110,336.99-49,720.56

Finding the Fourth Proportional to 79,925.42, 110,336.99 and 49,720.56

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Solution

The fourth proportional to 79,925.42, 110,336.99 and 49,720.56 is: 68,639.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,925.42 : 110,336.99 = 49,720.56 : x
  2. Step 2: Convert to fraction form
    79,925.42/110,336.99 = 49,720.56/x
  3. Step 3: Cross multiply
    79,925.42x = 110,336.99 × 49,720.56
  4. Step 4: Simplify right side
    79,925.42x = 5,486,016,379.83
  5. Step 5: Solve for x
    x = 5,486,016,379.83/79,925.42
  6. Step 6: Final answer
    x = 68,639.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.