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Finding the Fourth Proportional to 77,015.76, 115,448.44 and 37,571.28

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Solution

The fourth proportional to 77,015.76, 115,448.44 and 37,571.28 is: 56,320.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,015.76 : 115,448.44 = 37,571.28 : x
  2. Step 2: Convert to fraction form
    77,015.76/115,448.44 = 37,571.28/x
  3. Step 3: Cross multiply
    77,015.76x = 115,448.44 × 37,571.28
  4. Step 4: Simplify right side
    77,015.76x = 4,337,545,664.80
  5. Step 5: Solve for x
    x = 4,337,545,664.80/77,015.76
  6. Step 6: Final answer
    x = 56,320.23

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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.