Home / 57,745.68-86,623-18,305.04

Finding the Fourth Proportional to 57,745.68, 86,623 and 18,305.04

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Solution

The fourth proportional to 57,745.68, 86,623 and 18,305.04 is: 27,458.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,745.68 : 86,623 = 18,305.04 : x
  2. Step 2: Convert to fraction form
    57,745.68/86,623 = 18,305.04/x
  3. Step 3: Cross multiply
    57,745.68x = 86,623 × 18,305.04
  4. Step 4: Simplify right side
    57,745.68x = 1,585,637,479.92
  5. Step 5: Solve for x
    x = 1,585,637,479.92/57,745.68
  6. Step 6: Final answer
    x = 27,458.98

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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.