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Finding the Fourth Proportional to 55,125.68, 76,072.90 and 29,975.16

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Solution

The fourth proportional to 55,125.68, 76,072.90 and 29,975.16 is: 41,365.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,125.68 : 76,072.90 = 29,975.16 : x
  2. Step 2: Convert to fraction form
    55,125.68/76,072.90 = 29,975.16/x
  3. Step 3: Cross multiply
    55,125.68x = 76,072.90 × 29,975.16
  4. Step 4: Simplify right side
    55,125.68x = 2,280,297,349.16
  5. Step 5: Solve for x
    x = 2,280,297,349.16/55,125.68
  6. Step 6: Final answer
    x = 41,365.43

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1.5x scale

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.