Home / 77,704.17-107,231.59-43,712.68

Finding the Fourth Proportional to 77,704.17, 107,231.59 and 43,712.68

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Solution

The fourth proportional to 77,704.17, 107,231.59 and 43,712.68 is: 60,323.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,704.17 : 107,231.59 = 43,712.68 : x
  2. Step 2: Convert to fraction form
    77,704.17/107,231.59 = 43,712.68/x
  3. Step 3: Cross multiply
    77,704.17x = 107,231.59 × 43,712.68
  4. Step 4: Simplify right side
    77,704.17x = 4,687,379,865.59
  5. Step 5: Solve for x
    x = 4,687,379,865.59/77,704.17
  6. Step 6: Final answer
    x = 60,323.40

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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.