Home / 66,206.16-99,365.40-28,796.31

Finding the Fourth Proportional to 66,206.16, 99,365.40 and 28,796.31

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Solution

The fourth proportional to 66,206.16, 99,365.40 and 28,796.31 is: 43,218.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,206.16 : 99,365.40 = 28,796.31 : x
  2. Step 2: Convert to fraction form
    66,206.16/99,365.40 = 28,796.31/x
  3. Step 3: Cross multiply
    66,206.16x = 99,365.40 × 28,796.31
  4. Step 4: Simplify right side
    66,206.16x = 2,861,356,861.67
  5. Step 5: Solve for x
    x = 2,861,356,861.67/66,206.16
  6. Step 6: Final answer
    x = 43,218.89

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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.