Home / 77,781.24-116,670.50-25,190.82

Finding the Fourth Proportional to 77,781.24, 116,670.50 and 25,190.82

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Solution

The fourth proportional to 77,781.24, 116,670.50 and 25,190.82 is: 37,785.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,781.24 : 116,670.50 = 25,190.82 : x
  2. Step 2: Convert to fraction form
    77,781.24/116,670.50 = 25,190.82/x
  3. Step 3: Cross multiply
    77,781.24x = 116,670.50 × 25,190.82
  4. Step 4: Simplify right side
    77,781.24x = 2,939,025,564.81
  5. Step 5: Solve for x
    x = 2,939,025,564.81/77,781.24
  6. Step 6: Final answer
    x = 37,785.79

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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.