Home / 66,102.42-99,156.60-18,721.02

Finding the Fourth Proportional to 66,102.42, 99,156.60 and 18,721.02

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Solution

The fourth proportional to 66,102.42, 99,156.60 and 18,721.02 is: 28,082.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,102.42 : 99,156.60 = 18,721.02 : x
  2. Step 2: Convert to fraction form
    66,102.42/99,156.60 = 18,721.02/x
  3. Step 3: Cross multiply
    66,102.42x = 99,156.60 × 18,721.02
  4. Step 4: Simplify right side
    66,102.42x = 1,856,312,691.73
  5. Step 5: Solve for x
    x = 1,856,312,691.73/66,102.42
  6. Step 6: Final answer
    x = 28,082.37

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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.