Home / 78,232.68-107,979.94-45,974.42

Finding the Fourth Proportional to 78,232.68, 107,979.94 and 45,974.42

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Solution

The fourth proportional to 78,232.68, 107,979.94 and 45,974.42 is: 63,455.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,232.68 : 107,979.94 = 45,974.42 : x
  2. Step 2: Convert to fraction form
    78,232.68/107,979.94 = 45,974.42/x
  3. Step 3: Cross multiply
    78,232.68x = 107,979.94 × 45,974.42
  4. Step 4: Simplify right side
    78,232.68x = 4,964,315,113.13
  5. Step 5: Solve for x
    x = 4,964,315,113.13/78,232.68
  6. Step 6: Final answer
    x = 63,455.77

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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.