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Finding the Fourth Proportional to 66,477.44, 99,575.52 and 53,772.64

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Solution

The fourth proportional to 66,477.44, 99,575.52 and 53,772.64 is: 80,545.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,477.44 : 99,575.52 = 53,772.64 : x
  2. Step 2: Convert to fraction form
    66,477.44/99,575.52 = 53,772.64/x
  3. Step 3: Cross multiply
    66,477.44x = 99,575.52 × 53,772.64
  4. Step 4: Simplify right side
    66,477.44x = 5,354,438,589.77
  5. Step 5: Solve for x
    x = 5,354,438,589.77/66,477.44
  6. Step 6: Final answer
    x = 80,545.20

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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.