Home / 79,857.23-110,147.72-64,750.53

Finding the Fourth Proportional to 79,857.23, 110,147.72 and 64,750.53

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Solution

The fourth proportional to 79,857.23, 110,147.72 and 64,750.53 is: 89,310.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,857.23 : 110,147.72 = 64,750.53 : x
  2. Step 2: Convert to fraction form
    79,857.23/110,147.72 = 64,750.53/x
  3. Step 3: Cross multiply
    79,857.23x = 110,147.72 × 64,750.53
  4. Step 4: Simplify right side
    79,857.23x = 7,132,122,924.54
  5. Step 5: Solve for x
    x = 7,132,122,924.54/79,857.23
  6. Step 6: Final answer
    x = 89,310.93

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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.