Home / 66,521.58-99,778.72-40,219.26

Finding the Fourth Proportional to 66,521.58, 99,778.72 and 40,219.26

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Solution

The fourth proportional to 66,521.58, 99,778.72 and 40,219.26 is: 60,326.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,521.58 : 99,778.72 = 40,219.26 : x
  2. Step 2: Convert to fraction form
    66,521.58/99,778.72 = 40,219.26/x
  3. Step 3: Cross multiply
    66,521.58x = 99,778.72 × 40,219.26
  4. Step 4: Simplify right side
    66,521.58x = 4,013,026,282.15
  5. Step 5: Solve for x
    x = 4,013,026,282.15/66,521.58
  6. Step 6: Final answer
    x = 60,326.68

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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.