Home / 76,852.68-115,123.20-43,502.64

Finding the Fourth Proportional to 76,852.68, 115,123.20 and 43,502.64

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Solution

The fourth proportional to 76,852.68, 115,123.20 and 43,502.64 is: 65,165.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,852.68 : 115,123.20 = 43,502.64 : x
  2. Step 2: Convert to fraction form
    76,852.68/115,123.20 = 43,502.64/x
  3. Step 3: Cross multiply
    76,852.68x = 115,123.20 × 43,502.64
  4. Step 4: Simplify right side
    76,852.68x = 5,008,163,125.25
  5. Step 5: Solve for x
    x = 5,008,163,125.25/76,852.68
  6. Step 6: Final answer
    x = 65,165.76

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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.