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Finding the Fourth Proportional to 66,551.46, 99,843.03 and 21,572.85

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Solution

The fourth proportional to 66,551.46, 99,843.03 and 21,572.85 is: 32,364.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,551.46 : 99,843.03 = 21,572.85 : x
  2. Step 2: Convert to fraction form
    66,551.46/99,843.03 = 21,572.85/x
  3. Step 3: Cross multiply
    66,551.46x = 99,843.03 × 21,572.85
  4. Step 4: Simplify right side
    66,551.46x = 2,153,898,709.74
  5. Step 5: Solve for x
    x = 2,153,898,709.74/66,551.46
  6. Step 6: Final answer
    x = 32,364.41

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1.5x scale

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.