Home / 66,123.08-99,199.20-21,748.04

Finding the Fourth Proportional to 66,123.08, 99,199.20 and 21,748.04

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Solution

The fourth proportional to 66,123.08, 99,199.20 and 21,748.04 is: 32,626.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,123.08 : 99,199.20 = 21,748.04 : x
  2. Step 2: Convert to fraction form
    66,123.08/99,199.20 = 21,748.04/x
  3. Step 3: Cross multiply
    66,123.08x = 99,199.20 × 21,748.04
  4. Step 4: Simplify right side
    66,123.08x = 2,157,387,673.57
  5. Step 5: Solve for x
    x = 2,157,387,673.57/66,123.08
  6. Step 6: Final answer
    x = 32,626.85

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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.