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Finding the Fourth Proportional to 42,264.84, 63,400.86 and 11,100

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Solution

The fourth proportional to 42,264.84, 63,400.86 and 11,100 is: 16,650.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,264.84 : 63,400.86 = 11,100 : x
  2. Step 2: Convert to fraction form
    42,264.84/63,400.86 = 11,100/x
  3. Step 3: Cross multiply
    42,264.84x = 63,400.86 × 11,100
  4. Step 4: Simplify right side
    42,264.84x = 703,749,546
  5. Step 5: Solve for x
    x = 703,749,546/42,264.84
  6. Step 6: Final answer
    x = 16,650.95

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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.