Home / 66,146.70-99,235.08-21,777.96

Finding the Fourth Proportional to 66,146.70, 99,235.08 and 21,777.96

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Solution

The fourth proportional to 66,146.70, 99,235.08 and 21,777.96 is: 32,671.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,146.70 : 99,235.08 = 21,777.96 : x
  2. Step 2: Convert to fraction form
    66,146.70/99,235.08 = 21,777.96/x
  3. Step 3: Cross multiply
    66,146.70x = 99,235.08 × 21,777.96
  4. Step 4: Simplify right side
    66,146.70x = 2,161,137,602.84
  5. Step 5: Solve for x
    x = 2,161,137,602.84/66,146.70
  6. Step 6: Final answer
    x = 32,671.89

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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.