Home / 77,928.35-107,538.98-43,936.55

Finding the Fourth Proportional to 77,928.35, 107,538.98 and 43,936.55

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Solution

The fourth proportional to 77,928.35, 107,538.98 and 43,936.55 is: 60,631.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,928.35 : 107,538.98 = 43,936.55 : x
  2. Step 2: Convert to fraction form
    77,928.35/107,538.98 = 43,936.55/x
  3. Step 3: Cross multiply
    77,928.35x = 107,538.98 × 43,936.55
  4. Step 4: Simplify right side
    77,928.35x = 4,724,891,014.34
  5. Step 5: Solve for x
    x = 4,724,891,014.34/77,928.35
  6. Step 6: Final answer
    x = 60,631.22

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1.5x scale

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.