Home / 57,778.29-86,666.74-18,335.75

Finding the Fourth Proportional to 57,778.29, 86,666.74 and 18,335.75

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Solution

The fourth proportional to 57,778.29, 86,666.74 and 18,335.75 is: 27,503.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,778.29 : 86,666.74 = 18,335.75 : x
  2. Step 2: Convert to fraction form
    57,778.29/86,666.74 = 18,335.75/x
  3. Step 3: Cross multiply
    57,778.29x = 86,666.74 × 18,335.75
  4. Step 4: Simplify right side
    57,778.29x = 1,589,099,198.78
  5. Step 5: Solve for x
    x = 1,589,099,198.78/57,778.29
  6. Step 6: Final answer
    x = 27,503.40

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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.