Home / 66,179.64-99,286.05-19,432.50

Finding the Fourth Proportional to 66,179.64, 99,286.05 and 19,432.50

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Solution

The fourth proportional to 66,179.64, 99,286.05 and 19,432.50 is: 29,153.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,179.64 : 99,286.05 = 19,432.50 : x
  2. Step 2: Convert to fraction form
    66,179.64/99,286.05 = 19,432.50/x
  3. Step 3: Cross multiply
    66,179.64x = 99,286.05 × 19,432.50
  4. Step 4: Simplify right side
    66,179.64x = 1,929,376,166.63
  5. Step 5: Solve for x
    x = 1,929,376,166.63/66,179.64
  6. Step 6: Final answer
    x = 29,153.62

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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.