Home / 77,089.44-115,634.16-21,685.28

Finding the Fourth Proportional to 77,089.44, 115,634.16 and 21,685.28

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Solution

The fourth proportional to 77,089.44, 115,634.16 and 21,685.28 is: 32,527.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,089.44 : 115,634.16 = 21,685.28 : x
  2. Step 2: Convert to fraction form
    77,089.44/115,634.16 = 21,685.28/x
  3. Step 3: Cross multiply
    77,089.44x = 115,634.16 × 21,685.28
  4. Step 4: Simplify right side
    77,089.44x = 2,507,559,137.16
  5. Step 5: Solve for x
    x = 2,507,559,137.16/77,089.44
  6. Step 6: Final answer
    x = 32,527.92

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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.