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Finding the Fourth Proportional to 58,171.56, 87,213.60 and 39,404.40

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Solution

The fourth proportional to 58,171.56, 87,213.60 and 39,404.40 is: 59,076.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,171.56 : 87,213.60 = 39,404.40 : x
  2. Step 2: Convert to fraction form
    58,171.56/87,213.60 = 39,404.40/x
  3. Step 3: Cross multiply
    58,171.56x = 87,213.60 × 39,404.40
  4. Step 4: Simplify right side
    58,171.56x = 3,436,599,579.84
  5. Step 5: Solve for x
    x = 3,436,599,579.84/58,171.56
  6. Step 6: Final answer
    x = 59,076.97

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1.5x scale

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.