Home / 78,930.54-108,924.66-43,121.52

Finding the Fourth Proportional to 78,930.54, 108,924.66 and 43,121.52

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Solution

The fourth proportional to 78,930.54, 108,924.66 and 43,121.52 is: 59,507.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,930.54 : 108,924.66 = 43,121.52 : x
  2. Step 2: Convert to fraction form
    78,930.54/108,924.66 = 43,121.52/x
  3. Step 3: Cross multiply
    78,930.54x = 108,924.66 × 43,121.52
  4. Step 4: Simplify right side
    78,930.54x = 4,696,996,904.68
  5. Step 5: Solve for x
    x = 4,696,996,904.68/78,930.54
  6. Step 6: Final answer
    x = 59,507.98

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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.