Home / 66,126.36-99,178.60-21,753.68

Finding the Fourth Proportional to 66,126.36, 99,178.60 and 21,753.68

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Solution

The fourth proportional to 66,126.36, 99,178.60 and 21,753.68 is: 32,626.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,126.36 : 99,178.60 = 21,753.68 : x
  2. Step 2: Convert to fraction form
    66,126.36/99,178.60 = 21,753.68/x
  3. Step 3: Cross multiply
    66,126.36x = 99,178.60 × 21,753.68
  4. Step 4: Simplify right side
    66,126.36x = 2,157,499,527.25
  5. Step 5: Solve for x
    x = 2,157,499,527.25/66,126.36
  6. Step 6: Final answer
    x = 32,626.92

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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.