Home / 77,640.39-116,431.94-27,707.13

Finding the Fourth Proportional to 77,640.39, 116,431.94 and 27,707.13

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Solution

The fourth proportional to 77,640.39, 116,431.94 and 27,707.13 is: 41,550.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,640.39 : 116,431.94 = 27,707.13 : x
  2. Step 2: Convert to fraction form
    77,640.39/116,431.94 = 27,707.13/x
  3. Step 3: Cross multiply
    77,640.39x = 116,431.94 × 27,707.13
  4. Step 4: Simplify right side
    77,640.39x = 3,225,994,759.20
  5. Step 5: Solve for x
    x = 3,225,994,759.20/77,640.39
  6. Step 6: Final answer
    x = 41,550.47

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1.5x scale

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.