Home / 57,242.08-85,796.76-21,680.80

Finding the Fourth Proportional to 57,242.08, 85,796.76 and 21,680.80

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Solution

The fourth proportional to 57,242.08, 85,796.76 and 21,680.80 is: 32,496.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,242.08 : 85,796.76 = 21,680.80 : x
  2. Step 2: Convert to fraction form
    57,242.08/85,796.76 = 21,680.80/x
  3. Step 3: Cross multiply
    57,242.08x = 85,796.76 × 21,680.80
  4. Step 4: Simplify right side
    57,242.08x = 1,860,142,394.21
  5. Step 5: Solve for x
    x = 1,860,142,394.21/57,242.08
  6. Step 6: Final answer
    x = 32,496.07

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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.