Home / 77,738.13-107,259.59-43,740

Finding the Fourth Proportional to 77,738.13, 107,259.59 and 43,740

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Solution

The fourth proportional to 77,738.13, 107,259.59 and 43,740 is: 60,350.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,738.13 : 107,259.59 = 43,740 : x
  2. Step 2: Convert to fraction form
    77,738.13/107,259.59 = 43,740/x
  3. Step 3: Cross multiply
    77,738.13x = 107,259.59 × 43,740
  4. Step 4: Simplify right side
    77,738.13x = 4,691,534,575.95
  5. Step 5: Solve for x
    x = 4,691,534,575.95/77,738.13
  6. Step 6: Final answer
    x = 60,350.49

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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.