Home / 215,675.40-323,513.10-57,919.80

Finding the Fourth Proportional to 215,675.40, 323,513.10 and 57,919.80

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Solution

The fourth proportional to 215,675.40, 323,513.10 and 57,919.80 is: 86,879.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,675.40 : 323,513.10 = 57,919.80 : x
  2. Step 2: Convert to fraction form
    215,675.40/323,513.10 = 57,919.80/x
  3. Step 3: Cross multiply
    215,675.40x = 323,513.10 × 57,919.80
  4. Step 4: Simplify right side
    215,675.40x = 18,737,814,049.38
  5. Step 5: Solve for x
    x = 18,737,814,049.38/215,675.40
  6. Step 6: Final answer
    x = 86,879.70

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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.