Home / 57,877.70-86,816.55-18,438.80

Finding the Fourth Proportional to 57,877.70, 86,816.55 and 18,438.80

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Solution

The fourth proportional to 57,877.70, 86,816.55 and 18,438.80 is: 27,658.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,877.70 : 86,816.55 = 18,438.80 : x
  2. Step 2: Convert to fraction form
    57,877.70/86,816.55 = 18,438.80/x
  3. Step 3: Cross multiply
    57,877.70x = 86,816.55 × 18,438.80
  4. Step 4: Simplify right side
    57,877.70x = 1,600,793,002.14
  5. Step 5: Solve for x
    x = 1,600,793,002.14/57,877.70
  6. Step 6: Final answer
    x = 27,658.20

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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.