Home / 71,962.47-107,917.79-30,412.71

Finding the Fourth Proportional to 71,962.47, 107,917.79 and 30,412.71

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Solution

The fourth proportional to 71,962.47, 107,917.79 and 30,412.71 is: 45,608.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,962.47 : 107,917.79 = 30,412.71 : x
  2. Step 2: Convert to fraction form
    71,962.47/107,917.79 = 30,412.71/x
  3. Step 3: Cross multiply
    71,962.47x = 107,917.79 × 30,412.71
  4. Step 4: Simplify right side
    71,962.47x = 3,282,072,299.05
  5. Step 5: Solve for x
    x = 3,282,072,299.05/71,962.47
  6. Step 6: Final answer
    x = 45,608.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.