Home / 66,432.20-99,648.30-54,912.20

Finding the Fourth Proportional to 66,432.20, 99,648.30 and 54,912.20

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Solution

The fourth proportional to 66,432.20, 99,648.30 and 54,912.20 is: 82,368.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,432.20 : 99,648.30 = 54,912.20 : x
  2. Step 2: Convert to fraction form
    66,432.20/99,648.30 = 54,912.20/x
  3. Step 3: Cross multiply
    66,432.20x = 99,648.30 × 54,912.20
  4. Step 4: Simplify right side
    66,432.20x = 5,471,907,379.26
  5. Step 5: Solve for x
    x = 5,471,907,379.26/66,432.20
  6. Step 6: Final answer
    x = 82,368.30

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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.