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Finding the Fourth Proportional to 66,900.24, 100,354.14 and 29,477.79

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Solution

The fourth proportional to 66,900.24, 100,354.14 and 29,477.79 is: 44,218.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,900.24 : 100,354.14 = 29,477.79 : x
  2. Step 2: Convert to fraction form
    66,900.24/100,354.14 = 29,477.79/x
  3. Step 3: Cross multiply
    66,900.24x = 100,354.14 × 29,477.79
  4. Step 4: Simplify right side
    66,900.24x = 2,958,218,264.55
  5. Step 5: Solve for x
    x = 2,958,218,264.55/66,900.24
  6. Step 6: Final answer
    x = 44,218.35

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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.