Home / 77,591.20-107,062.96-45,755.68

Finding the Fourth Proportional to 77,591.20, 107,062.96 and 45,755.68

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Solution

The fourth proportional to 77,591.20, 107,062.96 and 45,755.68 is: 63,135.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,591.20 : 107,062.96 = 45,755.68 : x
  2. Step 2: Convert to fraction form
    77,591.20/107,062.96 = 45,755.68/x
  3. Step 3: Cross multiply
    77,591.20x = 107,062.96 × 45,755.68
  4. Step 4: Simplify right side
    77,591.20x = 4,898,738,537.61
  5. Step 5: Solve for x
    x = 4,898,738,537.61/77,591.20
  6. Step 6: Final answer
    x = 63,135.23

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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.