Home / 66,149.40-99,230.02-18,764.94

Finding the Fourth Proportional to 66,149.40, 99,230.02 and 18,764.94

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Solution

The fourth proportional to 66,149.40, 99,230.02 and 18,764.94 is: 28,149.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,149.40 : 99,230.02 = 18,764.94 : x
  2. Step 2: Convert to fraction form
    66,149.40/99,230.02 = 18,764.94/x
  3. Step 3: Cross multiply
    66,149.40x = 99,230.02 × 18,764.94
  4. Step 4: Simplify right side
    66,149.40x = 1,862,045,371.50
  5. Step 5: Solve for x
    x = 1,862,045,371.50/66,149.40
  6. Step 6: Final answer
    x = 28,149.09

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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.