Home / 82,530.27-123,795.45-45,069.86

Finding the Fourth Proportional to 82,530.27, 123,795.45 and 45,069.86

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Solution

The fourth proportional to 82,530.27, 123,795.45 and 45,069.86 is: 67,604.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,530.27 : 123,795.45 = 45,069.86 : x
  2. Step 2: Convert to fraction form
    82,530.27/123,795.45 = 45,069.86/x
  3. Step 3: Cross multiply
    82,530.27x = 123,795.45 × 45,069.86
  4. Step 4: Simplify right side
    82,530.27x = 5,579,443,434.69
  5. Step 5: Solve for x
    x = 5,579,443,434.69/82,530.27
  6. Step 6: Final answer
    x = 67,604.81

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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.