Home / 72,916.27-109,493.06-45,013.69

Finding the Fourth Proportional to 72,916.27, 109,493.06 and 45,013.69

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Solution

The fourth proportional to 72,916.27, 109,493.06 and 45,013.69 is: 67,593.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,916.27 : 109,493.06 = 45,013.69 : x
  2. Step 2: Convert to fraction form
    72,916.27/109,493.06 = 45,013.69/x
  3. Step 3: Cross multiply
    72,916.27x = 109,493.06 × 45,013.69
  4. Step 4: Simplify right side
    72,916.27x = 4,928,686,659.99
  5. Step 5: Solve for x
    x = 4,928,686,659.99/72,916.27
  6. Step 6: Final answer
    x = 67,593.78

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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.