Home / 76,953.83-115,419.66-20,797.14

Finding the Fourth Proportional to 76,953.83, 115,419.66 and 20,797.14

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Solution

The fourth proportional to 76,953.83, 115,419.66 and 20,797.14 is: 31,192.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,953.83 : 115,419.66 = 20,797.14 : x
  2. Step 2: Convert to fraction form
    76,953.83/115,419.66 = 20,797.14/x
  3. Step 3: Cross multiply
    76,953.83x = 115,419.66 × 20,797.14
  4. Step 4: Simplify right side
    76,953.83x = 2,400,398,827.77
  5. Step 5: Solve for x
    x = 2,400,398,827.77/76,953.83
  6. Step 6: Final answer
    x = 31,192.72

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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.