Home / 78,929.66-108,930.46-43,125.06

Finding the Fourth Proportional to 78,929.66, 108,930.46 and 43,125.06

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Solution

The fourth proportional to 78,929.66, 108,930.46 and 43,125.06 is: 59,516.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,929.66 : 108,930.46 = 43,125.06 : x
  2. Step 2: Convert to fraction form
    78,929.66/108,930.46 = 43,125.06/x
  3. Step 3: Cross multiply
    78,929.66x = 108,930.46 × 43,125.06
  4. Step 4: Simplify right side
    78,929.66x = 4,697,632,623.33
  5. Step 5: Solve for x
    x = 4,697,632,623.33/78,929.66
  6. Step 6: Final answer
    x = 59,516.70

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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.