Home / 57,832.09-86,748.74-20,385.18

Finding the Fourth Proportional to 57,832.09, 86,748.74 and 20,385.18

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Solution

The fourth proportional to 57,832.09, 86,748.74 and 20,385.18 is: 30,577.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,832.09 : 86,748.74 = 20,385.18 : x
  2. Step 2: Convert to fraction form
    57,832.09/86,748.74 = 20,385.18/x
  3. Step 3: Cross multiply
    57,832.09x = 86,748.74 × 20,385.18
  4. Step 4: Simplify right side
    57,832.09x = 1,768,388,679.67
  5. Step 5: Solve for x
    x = 1,768,388,679.67/57,832.09
  6. Step 6: Final answer
    x = 30,577.98

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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.