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Finding the Fourth Proportional to 77,080.71, 115,619.27 and 35,527.71

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Solution

The fourth proportional to 77,080.71, 115,619.27 and 35,527.71 is: 53,290.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,080.71 : 115,619.27 = 35,527.71 : x
  2. Step 2: Convert to fraction form
    77,080.71/115,619.27 = 35,527.71/x
  3. Step 3: Cross multiply
    77,080.71x = 115,619.27 × 35,527.71
  4. Step 4: Simplify right side
    77,080.71x = 4,107,687,717.33
  5. Step 5: Solve for x
    x = 4,107,687,717.33/77,080.71
  6. Step 6: Final answer
    x = 53,290.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.