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Finding the Fourth Proportional to 55,179, 76,147.02 and 30,029.04

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Solution

The fourth proportional to 55,179, 76,147.02 and 30,029.04 is: 41,440.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,179 : 76,147.02 = 30,029.04 : x
  2. Step 2: Convert to fraction form
    55,179/76,147.02 = 30,029.04/x
  3. Step 3: Cross multiply
    55,179x = 76,147.02 × 30,029.04
  4. Step 4: Simplify right side
    55,179x = 2,286,621,909.46
  5. Step 5: Solve for x
    x = 2,286,621,909.46/55,179
  6. Step 6: Final answer
    x = 41,440.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.