Home / 66,114.38-99,186.26-21,739.34

Finding the Fourth Proportional to 66,114.38, 99,186.26 and 21,739.34

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Solution

The fourth proportional to 66,114.38, 99,186.26 and 21,739.34 is: 32,613.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,114.38 : 99,186.26 = 21,739.34 : x
  2. Step 2: Convert to fraction form
    66,114.38/99,186.26 = 21,739.34/x
  3. Step 3: Cross multiply
    66,114.38x = 99,186.26 × 21,739.34
  4. Step 4: Simplify right side
    66,114.38x = 2,156,243,968.74
  5. Step 5: Solve for x
    x = 2,156,243,968.74/66,114.38
  6. Step 6: Final answer
    x = 32,613.84

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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.