Home / 77,738.99-107,278.50-43,747.43

Finding the Fourth Proportional to 77,738.99, 107,278.50 and 43,747.43

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Solution

The fourth proportional to 77,738.99, 107,278.50 and 43,747.43 is: 60,370.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,738.99 : 107,278.50 = 43,747.43 : x
  2. Step 2: Convert to fraction form
    77,738.99/107,278.50 = 43,747.43/x
  3. Step 3: Cross multiply
    77,738.99x = 107,278.50 × 43,747.43
  4. Step 4: Simplify right side
    77,738.99x = 4,693,158,937.45
  5. Step 5: Solve for x
    x = 4,693,158,937.45/77,738.99
  6. Step 6: Final answer
    x = 60,370.73

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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.