Home / 77,178.09-115,816.55-41,664.13

Finding the Fourth Proportional to 77,178.09, 115,816.55 and 41,664.13

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Solution

The fourth proportional to 77,178.09, 115,816.55 and 41,664.13 is: 62,522.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,178.09 : 115,816.55 = 41,664.13 : x
  2. Step 2: Convert to fraction form
    77,178.09/115,816.55 = 41,664.13/x
  3. Step 3: Cross multiply
    77,178.09x = 115,816.55 × 41,664.13
  4. Step 4: Simplify right side
    77,178.09x = 4,825,395,795.35
  5. Step 5: Solve for x
    x = 4,825,395,795.35/77,178.09
  6. Step 6: Final answer
    x = 62,522.87

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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.