Home / 77,976.67-107,605.38-43,984.65

Finding the Fourth Proportional to 77,976.67, 107,605.38 and 43,984.65

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Solution

The fourth proportional to 77,976.67, 107,605.38 and 43,984.65 is: 60,697.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,976.67 : 107,605.38 = 43,984.65 : x
  2. Step 2: Convert to fraction form
    77,976.67/107,605.38 = 43,984.65/x
  3. Step 3: Cross multiply
    77,976.67x = 107,605.38 × 43,984.65
  4. Step 4: Simplify right side
    77,976.67x = 4,732,984,757.49
  5. Step 5: Solve for x
    x = 4,732,984,757.49/77,976.67
  6. Step 6: Final answer
    x = 60,697.45

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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.