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Finding the Fourth Proportional to 55,702.82, 76,880.54 and 43,579.15

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Solution

The fourth proportional to 55,702.82, 76,880.54 and 43,579.15 is: 60,147.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,702.82 : 76,880.54 = 43,579.15 : x
  2. Step 2: Convert to fraction form
    55,702.82/76,880.54 = 43,579.15/x
  3. Step 3: Cross multiply
    55,702.82x = 76,880.54 × 43,579.15
  4. Step 4: Simplify right side
    55,702.82x = 3,350,388,501.49
  5. Step 5: Solve for x
    x = 3,350,388,501.49/55,702.82
  6. Step 6: Final answer
    x = 60,147.55

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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.