Home / 78,824.58-108,777.88-50,530.26

Finding the Fourth Proportional to 78,824.58, 108,777.88 and 50,530.26

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Solution

The fourth proportional to 78,824.58, 108,777.88 and 50,530.26 is: 69,731.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,824.58 : 108,777.88 = 50,530.26 : x
  2. Step 2: Convert to fraction form
    78,824.58/108,777.88 = 50,530.26/x
  3. Step 3: Cross multiply
    78,824.58x = 108,777.88 × 50,530.26
  4. Step 4: Simplify right side
    78,824.58x = 5,496,574,558.65
  5. Step 5: Solve for x
    x = 5,496,574,558.65/78,824.58
  6. Step 6: Final answer
    x = 69,731.73

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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.