Home / 77,128.68-115,651.44-41,609.04

Finding the Fourth Proportional to 77,128.68, 115,651.44 and 41,609.04

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Solution

The fourth proportional to 77,128.68, 115,651.44 and 41,609.04 is: 62,391.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,128.68 : 115,651.44 = 41,609.04 : x
  2. Step 2: Convert to fraction form
    77,128.68/115,651.44 = 41,609.04/x
  3. Step 3: Cross multiply
    77,128.68x = 115,651.44 × 41,609.04
  4. Step 4: Simplify right side
    77,128.68x = 4,812,145,393.02
  5. Step 5: Solve for x
    x = 4,812,145,393.02/77,128.68
  6. Step 6: Final answer
    x = 62,391.13

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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.