Home / 77,178.16-115,960.97-49,110.40

Finding the Fourth Proportional to 77,178.16, 115,960.97 and 49,110.40

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Solution

The fourth proportional to 77,178.16, 115,960.97 and 49,110.40 is: 73,788.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,178.16 : 115,960.97 = 49,110.40 : x
  2. Step 2: Convert to fraction form
    77,178.16/115,960.97 = 49,110.40/x
  3. Step 3: Cross multiply
    77,178.16x = 115,960.97 × 49,110.40
  4. Step 4: Simplify right side
    77,178.16x = 5,694,889,621.09
  5. Step 5: Solve for x
    x = 5,694,889,621.09/77,178.16
  6. Step 6: Final answer
    x = 73,788.88

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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.