Home / 77,839.69-107,412.39-43,837.31

Finding the Fourth Proportional to 77,839.69, 107,412.39 and 43,837.31

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Solution

The fourth proportional to 77,839.69, 107,412.39 and 43,837.31 is: 60,491.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,839.69 : 107,412.39 = 43,837.31 : x
  2. Step 2: Convert to fraction form
    77,839.69/107,412.39 = 43,837.31/x
  3. Step 3: Cross multiply
    77,839.69x = 107,412.39 × 43,837.31
  4. Step 4: Simplify right side
    77,839.69x = 4,708,669,701.21
  5. Step 5: Solve for x
    x = 4,708,669,701.21/77,839.69
  6. Step 6: Final answer
    x = 60,491.89

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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.