Home / 75,970.76-104,839.02-41,979.15

Finding the Fourth Proportional to 75,970.76, 104,839.02 and 41,979.15

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Solution

The fourth proportional to 75,970.76, 104,839.02 and 41,979.15 is: 57,930.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,970.76 : 104,839.02 = 41,979.15 : x
  2. Step 2: Convert to fraction form
    75,970.76/104,839.02 = 41,979.15/x
  3. Step 3: Cross multiply
    75,970.76x = 104,839.02 × 41,979.15
  4. Step 4: Simplify right side
    75,970.76x = 4,401,052,946.43
  5. Step 5: Solve for x
    x = 4,401,052,946.43/75,970.76
  6. Step 6: Final answer
    x = 57,930.88

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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.