Home / 77,825.22-116,746.20-21,665.52

Finding the Fourth Proportional to 77,825.22, 116,746.20 and 21,665.52

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Solution

The fourth proportional to 77,825.22, 116,746.20 and 21,665.52 is: 32,500.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,825.22 : 116,746.20 = 21,665.52 : x
  2. Step 2: Convert to fraction form
    77,825.22/116,746.20 = 21,665.52/x
  3. Step 3: Cross multiply
    77,825.22x = 116,746.20 × 21,665.52
  4. Step 4: Simplify right side
    77,825.22x = 2,529,367,131.02
  5. Step 5: Solve for x
    x = 2,529,367,131.02/77,825.22
  6. Step 6: Final answer
    x = 32,500.61

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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.