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Finding the Fourth Proportional to 55,560.50, 76,673.49 and 30,410

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Solution

The fourth proportional to 55,560.50, 76,673.49 and 30,410 is: 41,965.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,560.50 : 76,673.49 = 30,410 : x
  2. Step 2: Convert to fraction form
    55,560.50/76,673.49 = 30,410/x
  3. Step 3: Cross multiply
    55,560.50x = 76,673.49 × 30,410
  4. Step 4: Simplify right side
    55,560.50x = 2,331,640,830.90
  5. Step 5: Solve for x
    x = 2,331,640,830.90/55,560.50
  6. Step 6: Final answer
    x = 41,965.80

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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.