Home / 66,235.76-99,365.82-21,865.58

Finding the Fourth Proportional to 66,235.76, 99,365.82 and 21,865.58

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Solution

The fourth proportional to 66,235.76, 99,365.82 and 21,865.58 is: 32,802.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,235.76 : 99,365.82 = 21,865.58 : x
  2. Step 2: Convert to fraction form
    66,235.76/99,365.82 = 21,865.58/x
  3. Step 3: Cross multiply
    66,235.76x = 99,365.82 × 21,865.58
  4. Step 4: Simplify right side
    66,235.76x = 2,172,691,286.48
  5. Step 5: Solve for x
    x = 2,172,691,286.48/66,235.76
  6. Step 6: Final answer
    x = 32,802.39

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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.