Home / 66,123.40-99,200.10-21,750.52

Finding the Fourth Proportional to 66,123.40, 99,200.10 and 21,750.52

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Solution

The fourth proportional to 66,123.40, 99,200.10 and 21,750.52 is: 32,630.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,123.40 : 99,200.10 = 21,750.52 : x
  2. Step 2: Convert to fraction form
    66,123.40/99,200.10 = 21,750.52/x
  3. Step 3: Cross multiply
    66,123.40x = 99,200.10 × 21,750.52
  4. Step 4: Simplify right side
    66,123.40x = 2,157,653,759.05
  5. Step 5: Solve for x
    x = 2,157,653,759.05/66,123.40
  6. Step 6: Final answer
    x = 32,630.71

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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.