Home / 57,780.80-86,673.68-18,339.52

Finding the Fourth Proportional to 57,780.80, 86,673.68 and 18,339.52

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Solution

The fourth proportional to 57,780.80, 86,673.68 and 18,339.52 is: 27,510.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,780.80 : 86,673.68 = 18,339.52 : x
  2. Step 2: Convert to fraction form
    57,780.80/86,673.68 = 18,339.52/x
  3. Step 3: Cross multiply
    57,780.80x = 86,673.68 × 18,339.52
  4. Step 4: Simplify right side
    57,780.80x = 1,589,553,687.83
  5. Step 5: Solve for x
    x = 1,589,553,687.83/57,780.80
  6. Step 6: Final answer
    x = 27,510.07

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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.