Home / 49,931.29-68,905.64-28,419.98

Finding the Fourth Proportional to 49,931.29, 68,905.64 and 28,419.98

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Solution

The fourth proportional to 49,931.29, 68,905.64 and 28,419.98 is: 39,219.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,931.29 : 68,905.64 = 28,419.98 : x
  2. Step 2: Convert to fraction form
    49,931.29/68,905.64 = 28,419.98/x
  3. Step 3: Cross multiply
    49,931.29x = 68,905.64 × 28,419.98
  4. Step 4: Simplify right side
    49,931.29x = 1,958,296,910.69
  5. Step 5: Solve for x
    x = 1,958,296,910.69/49,931.29
  6. Step 6: Final answer
    x = 39,219.83

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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.