Home / 82,465.92-123,764.48-29,890.40

Finding the Fourth Proportional to 82,465.92, 123,764.48 and 29,890.40

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Solution

The fourth proportional to 82,465.92, 123,764.48 and 29,890.40 is: 44,859.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,465.92 : 123,764.48 = 29,890.40 : x
  2. Step 2: Convert to fraction form
    82,465.92/123,764.48 = 29,890.40/x
  3. Step 3: Cross multiply
    82,465.92x = 123,764.48 × 29,890.40
  4. Step 4: Simplify right side
    82,465.92x = 3,699,369,812.99
  5. Step 5: Solve for x
    x = 3,699,369,812.99/82,465.92
  6. Step 6: Final answer
    x = 44,859.38

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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.