Home / 55,757.10-76,838.73-54,732.40

Finding the Fourth Proportional to 55,757.10, 76,838.73 and 54,732.40

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Solution

The fourth proportional to 55,757.10, 76,838.73 and 54,732.40 is: 75,426.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,757.10 : 76,838.73 = 54,732.40 : x
  2. Step 2: Convert to fraction form
    55,757.10/76,838.73 = 54,732.40/x
  3. Step 3: Cross multiply
    55,757.10x = 76,838.73 × 54,732.40
  4. Step 4: Simplify right side
    55,757.10x = 4,205,568,386.42
  5. Step 5: Solve for x
    x = 4,205,568,386.42/55,757.10
  6. Step 6: Final answer
    x = 75,426.60

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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.