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Finding the Fourth Proportional to 42,328.80, 63,512.64 and 41,628.96

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Solution

The fourth proportional to 42,328.80, 63,512.64 and 41,628.96 is: 62,462.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,328.80 : 63,512.64 = 41,628.96 : x
  2. Step 2: Convert to fraction form
    42,328.80/63,512.64 = 41,628.96/x
  3. Step 3: Cross multiply
    42,328.80x = 63,512.64 × 41,628.96
  4. Step 4: Simplify right side
    42,328.80x = 2,643,965,150.05
  5. Step 5: Solve for x
    x = 2,643,965,150.05/42,328.80
  6. Step 6: Final answer
    x = 62,462.56

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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.