Home / 57,742.20-86,625.45-18,303.30

Finding the Fourth Proportional to 57,742.20, 86,625.45 and 18,303.30

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Solution

The fourth proportional to 57,742.20, 86,625.45 and 18,303.30 is: 27,458.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,742.20 : 86,625.45 = 18,303.30 : x
  2. Step 2: Convert to fraction form
    57,742.20/86,625.45 = 18,303.30/x
  3. Step 3: Cross multiply
    57,742.20x = 86,625.45 × 18,303.30
  4. Step 4: Simplify right side
    57,742.20x = 1,585,531,598.99
  5. Step 5: Solve for x
    x = 1,585,531,598.99/57,742.20
  6. Step 6: Final answer
    x = 27,458.80

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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.