Home / 66,123.45-99,199.76-21,748.41

Finding the Fourth Proportional to 66,123.45, 99,199.76 and 21,748.41

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Solution

The fourth proportional to 66,123.45, 99,199.76 and 21,748.41 is: 32,627.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,123.45 : 99,199.76 = 21,748.41 : x
  2. Step 2: Convert to fraction form
    66,123.45/99,199.76 = 21,748.41/x
  3. Step 3: Cross multiply
    66,123.45x = 99,199.76 × 21,748.41
  4. Step 4: Simplify right side
    66,123.45x = 2,157,436,943.64
  5. Step 5: Solve for x
    x = 2,157,436,943.64/66,123.45
  6. Step 6: Final answer
    x = 32,627.41

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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.