Home / 55,003.05-75,795.35-39,042.81

Finding the Fourth Proportional to 55,003.05, 75,795.35 and 39,042.81

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Solution

The fourth proportional to 55,003.05, 75,795.35 and 39,042.81 is: 53,801.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,003.05 : 75,795.35 = 39,042.81 : x
  2. Step 2: Convert to fraction form
    55,003.05/75,795.35 = 39,042.81/x
  3. Step 3: Cross multiply
    55,003.05x = 75,795.35 × 39,042.81
  4. Step 4: Simplify right side
    55,003.05x = 2,959,263,253.72
  5. Step 5: Solve for x
    x = 2,959,263,253.72/55,003.05
  6. Step 6: Final answer
    x = 53,801.80

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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.