Home / 76,913.28-106,099.20-53,051.76

Finding the Fourth Proportional to 76,913.28, 106,099.20 and 53,051.76

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Solution

The fourth proportional to 76,913.28, 106,099.20 and 53,051.76 is: 73,183.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,913.28 : 106,099.20 = 53,051.76 : x
  2. Step 2: Convert to fraction form
    76,913.28/106,099.20 = 53,051.76/x
  3. Step 3: Cross multiply
    76,913.28x = 106,099.20 × 53,051.76
  4. Step 4: Simplify right side
    76,913.28x = 5,628,749,294.59
  5. Step 5: Solve for x
    x = 5,628,749,294.59/76,913.28
  6. Step 6: Final answer
    x = 73,183.06

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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.