Home / 77,945.68-107,493.30-51,078.43

Finding the Fourth Proportional to 77,945.68, 107,493.30 and 51,078.43

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Solution

The fourth proportional to 77,945.68, 107,493.30 and 51,078.43 is: 70,441.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,945.68 : 107,493.30 = 51,078.43 : x
  2. Step 2: Convert to fraction form
    77,945.68/107,493.30 = 51,078.43/x
  3. Step 3: Cross multiply
    77,945.68x = 107,493.30 × 51,078.43
  4. Step 4: Simplify right side
    77,945.68x = 5,490,588,206.66
  5. Step 5: Solve for x
    x = 5,490,588,206.66/77,945.68
  6. Step 6: Final answer
    x = 70,441.22

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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.