Home / 57,946.60-86,930.70-18,514.90

Finding the Fourth Proportional to 57,946.60, 86,930.70 and 18,514.90

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Solution

The fourth proportional to 57,946.60, 86,930.70 and 18,514.90 is: 27,775.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,946.60 : 86,930.70 = 18,514.90 : x
  2. Step 2: Convert to fraction form
    57,946.60/86,930.70 = 18,514.90/x
  3. Step 3: Cross multiply
    57,946.60x = 86,930.70 × 18,514.90
  4. Step 4: Simplify right side
    57,946.60x = 1,609,513,217.43
  5. Step 5: Solve for x
    x = 1,609,513,217.43/57,946.60
  6. Step 6: Final answer
    x = 27,775.80

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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.