Home / 86,949.78-119,995.16-48,707.03

Finding the Fourth Proportional to 86,949.78, 119,995.16 and 48,707.03

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Solution

The fourth proportional to 86,949.78, 119,995.16 and 48,707.03 is: 67,218.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,949.78 : 119,995.16 = 48,707.03 : x
  2. Step 2: Convert to fraction form
    86,949.78/119,995.16 = 48,707.03/x
  3. Step 3: Cross multiply
    86,949.78x = 119,995.16 × 48,707.03
  4. Step 4: Simplify right side
    86,949.78x = 5,844,607,857.97
  5. Step 5: Solve for x
    x = 5,844,607,857.97/86,949.78
  6. Step 6: Final answer
    x = 67,218.20

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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.