Home / 57,939.60-86,909.40-18,500.70

Finding the Fourth Proportional to 57,939.60, 86,909.40 and 18,500.70

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Solution

The fourth proportional to 57,939.60, 86,909.40 and 18,500.70 is: 27,751.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,939.60 : 86,909.40 = 18,500.70 : x
  2. Step 2: Convert to fraction form
    57,939.60/86,909.40 = 18,500.70/x
  3. Step 3: Cross multiply
    57,939.60x = 86,909.40 × 18,500.70
  4. Step 4: Simplify right side
    57,939.60x = 1,607,884,736.58
  5. Step 5: Solve for x
    x = 1,607,884,736.58/57,939.60
  6. Step 6: Final answer
    x = 27,751.05

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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.