Home / 96,778.19-133,550.46-54,338.51

Finding the Fourth Proportional to 96,778.19, 133,550.46 and 54,338.51

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Solution

The fourth proportional to 96,778.19, 133,550.46 and 54,338.51 is: 74,985.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,778.19 : 133,550.46 = 54,338.51 : x
  2. Step 2: Convert to fraction form
    96,778.19/133,550.46 = 54,338.51/x
  3. Step 3: Cross multiply
    96,778.19x = 133,550.46 × 54,338.51
  4. Step 4: Simplify right side
    96,778.19x = 7,256,933,006.21
  5. Step 5: Solve for x
    x = 7,256,933,006.21/96,778.19
  6. Step 6: Final answer
    x = 74,985.21

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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.