Home / 77,928.86-107,539.67-43,937.05

Finding the Fourth Proportional to 77,928.86, 107,539.67 and 43,937.05

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Solution

The fourth proportional to 77,928.86, 107,539.67 and 43,937.05 is: 60,631.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,928.86 : 107,539.67 = 43,937.05 : x
  2. Step 2: Convert to fraction form
    77,928.86/107,539.67 = 43,937.05/x
  3. Step 3: Cross multiply
    77,928.86x = 107,539.67 × 43,937.05
  4. Step 4: Simplify right side
    77,928.86x = 4,724,975,100.39
  5. Step 5: Solve for x
    x = 4,724,975,100.39/77,928.86
  6. Step 6: Final answer
    x = 60,631.91

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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.