Home / 78,799.52-108,728.44-46,971.38

Finding the Fourth Proportional to 78,799.52, 108,728.44 and 46,971.38

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Solution

The fourth proportional to 78,799.52, 108,728.44 and 46,971.38 is: 64,811.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,799.52 : 108,728.44 = 46,971.38 : x
  2. Step 2: Convert to fraction form
    78,799.52/108,728.44 = 46,971.38/x
  3. Step 3: Cross multiply
    78,799.52x = 108,728.44 × 46,971.38
  4. Step 4: Simplify right side
    78,799.52x = 5,107,124,872.05
  5. Step 5: Solve for x
    x = 5,107,124,872.05/78,799.52
  6. Step 6: Final answer
    x = 64,811.62

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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.