Home / 75,129.24-103,678.38-46,834.92

Finding the Fourth Proportional to 75,129.24, 103,678.38 and 46,834.92

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Solution

The fourth proportional to 75,129.24, 103,678.38 and 46,834.92 is: 64,632.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,129.24 : 103,678.38 = 46,834.92 : x
  2. Step 2: Convert to fraction form
    75,129.24/103,678.38 = 46,834.92/x
  3. Step 3: Cross multiply
    75,129.24x = 103,678.38 × 46,834.92
  4. Step 4: Simplify right side
    75,129.24x = 4,855,768,633.03
  5. Step 5: Solve for x
    x = 4,855,768,633.03/75,129.24
  6. Step 6: Final answer
    x = 64,632.21

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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.