Home / 77,028.28-115,610.48-37,620.16

Finding the Fourth Proportional to 77,028.28, 115,610.48 and 37,620.16

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Solution

The fourth proportional to 77,028.28, 115,610.48 and 37,620.16 is: 56,463.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,028.28 : 115,610.48 = 37,620.16 : x
  2. Step 2: Convert to fraction form
    77,028.28/115,610.48 = 37,620.16/x
  3. Step 3: Cross multiply
    77,028.28x = 115,610.48 × 37,620.16
  4. Step 4: Simplify right side
    77,028.28x = 4,349,284,755.28
  5. Step 5: Solve for x
    x = 4,349,284,755.28/77,028.28
  6. Step 6: Final answer
    x = 56,463.48

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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.