Home / 56,195.10-77,640.39-55,642.14

Finding the Fourth Proportional to 56,195.10, 77,640.39 and 55,642.14

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Solution

The fourth proportional to 56,195.10, 77,640.39 and 55,642.14 is: 76,876.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,195.10 : 77,640.39 = 55,642.14 : x
  2. Step 2: Convert to fraction form
    56,195.10/77,640.39 = 55,642.14/x
  3. Step 3: Cross multiply
    56,195.10x = 77,640.39 × 55,642.14
  4. Step 4: Simplify right side
    56,195.10x = 4,320,077,450.03
  5. Step 5: Solve for x
    x = 4,320,077,450.03/56,195.10
  6. Step 6: Final answer
    x = 76,876.41

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1.5x scale

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.