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Finding the Fourth Proportional to 66,300.91, 99,454.65 and 18,922.98

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Solution

The fourth proportional to 66,300.91, 99,454.65 and 18,922.98 is: 28,385.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,300.91 : 99,454.65 = 18,922.98 : x
  2. Step 2: Convert to fraction form
    66,300.91/99,454.65 = 18,922.98/x
  3. Step 3: Cross multiply
    66,300.91x = 99,454.65 × 18,922.98
  4. Step 4: Simplify right side
    66,300.91x = 1,881,978,654.85
  5. Step 5: Solve for x
    x = 1,881,978,654.85/66,300.91
  6. Step 6: Final answer
    x = 28,385.41

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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.