Home / 66,193.56-99,269.28-21,812.04

Finding the Fourth Proportional to 66,193.56, 99,269.28 and 21,812.04

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Solution

The fourth proportional to 66,193.56, 99,269.28 and 21,812.04 is: 32,711.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,193.56 : 99,269.28 = 21,812.04 : x
  2. Step 2: Convert to fraction form
    66,193.56/99,269.28 = 21,812.04/x
  3. Step 3: Cross multiply
    66,193.56x = 99,269.28 × 21,812.04
  4. Step 4: Simplify right side
    66,193.56x = 2,165,265,506.13
  5. Step 5: Solve for x
    x = 2,165,265,506.13/66,193.56
  6. Step 6: Final answer
    x = 32,711.12

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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.