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Finding the Fourth Proportional to 55,630.78, 83,376.09 and 39,753.10

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Solution

The fourth proportional to 55,630.78, 83,376.09 and 39,753.10 is: 59,579.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,630.78 : 83,376.09 = 39,753.10 : x
  2. Step 2: Convert to fraction form
    55,630.78/83,376.09 = 39,753.10/x
  3. Step 3: Cross multiply
    55,630.78x = 83,376.09 × 39,753.10
  4. Step 4: Simplify right side
    55,630.78x = 3,314,458,043.38
  5. Step 5: Solve for x
    x = 3,314,458,043.38/55,630.78
  6. Step 6: Final answer
    x = 59,579.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.