Home / 77,023.68-115,385.15-50,648.46

Finding the Fourth Proportional to 77,023.68, 115,385.15 and 50,648.46

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Solution

The fourth proportional to 77,023.68, 115,385.15 and 50,648.46 is: 75,873.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,023.68 : 115,385.15 = 50,648.46 : x
  2. Step 2: Convert to fraction form
    77,023.68/115,385.15 = 50,648.46/x
  3. Step 3: Cross multiply
    77,023.68x = 115,385.15 × 50,648.46
  4. Step 4: Simplify right side
    77,023.68x = 5,844,079,901.13
  5. Step 5: Solve for x
    x = 5,844,079,901.13/77,023.68
  6. Step 6: Final answer
    x = 75,873.81

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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.