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Finding the Fourth Proportional to 60,201.54, 90,357.75 and 30,640.50

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Solution

The fourth proportional to 60,201.54, 90,357.75 and 30,640.50 is: 45,988.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,201.54 : 90,357.75 = 30,640.50 : x
  2. Step 2: Convert to fraction form
    60,201.54/90,357.75 = 30,640.50/x
  3. Step 3: Cross multiply
    60,201.54x = 90,357.75 × 30,640.50
  4. Step 4: Simplify right side
    60,201.54x = 2,768,606,638.88
  5. Step 5: Solve for x
    x = 2,768,606,638.88/60,201.54
  6. Step 6: Final answer
    x = 45,988.97

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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.