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Finding the Fourth Proportional to 55,157.85, 76,133.87 and 36,040.43

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Solution

The fourth proportional to 55,157.85, 76,133.87 and 36,040.43 is: 49,746.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,157.85 : 76,133.87 = 36,040.43 : x
  2. Step 2: Convert to fraction form
    55,157.85/76,133.87 = 36,040.43/x
  3. Step 3: Cross multiply
    55,157.85x = 76,133.87 × 36,040.43
  4. Step 4: Simplify right side
    55,157.85x = 2,743,896,851.49
  5. Step 5: Solve for x
    x = 2,743,896,851.49/55,157.85
  6. Step 6: Final answer
    x = 49,746.26

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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.