Home / 78,975.42-108,989.01-43,167.84

Finding the Fourth Proportional to 78,975.42, 108,989.01 and 43,167.84

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Solution

The fourth proportional to 78,975.42, 108,989.01 and 43,167.84 is: 59,573.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,975.42 : 108,989.01 = 43,167.84 : x
  2. Step 2: Convert to fraction form
    78,975.42/108,989.01 = 43,167.84/x
  3. Step 3: Cross multiply
    78,975.42x = 108,989.01 × 43,167.84
  4. Step 4: Simplify right side
    78,975.42x = 4,704,820,145.44
  5. Step 5: Solve for x
    x = 4,704,820,145.44/78,975.42
  6. Step 6: Final answer
    x = 59,573.22

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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.