Home / 77,344.20-106,786.44-59,407.14

Finding the Fourth Proportional to 77,344.20, 106,786.44 and 59,407.14

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Solution

The fourth proportional to 77,344.20, 106,786.44 and 59,407.14 is: 82,021.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,344.20 : 106,786.44 = 59,407.14 : x
  2. Step 2: Convert to fraction form
    77,344.20/106,786.44 = 59,407.14/x
  3. Step 3: Cross multiply
    77,344.20x = 106,786.44 × 59,407.14
  4. Step 4: Simplify right side
    77,344.20x = 6,343,876,991.18
  5. Step 5: Solve for x
    x = 6,343,876,991.18/77,344.20
  6. Step 6: Final answer
    x = 82,021.37

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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.