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Finding the Fourth Proportional to 71,901.60, 107,801.20 and 27,511.20

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Solution

The fourth proportional to 71,901.60, 107,801.20 and 27,511.20 is: 41,247.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,901.60 : 107,801.20 = 27,511.20 : x
  2. Step 2: Convert to fraction form
    71,901.60/107,801.20 = 27,511.20/x
  3. Step 3: Cross multiply
    71,901.60x = 107,801.20 × 27,511.20
  4. Step 4: Simplify right side
    71,901.60x = 2,965,740,373.44
  5. Step 5: Solve for x
    x = 2,965,740,373.44/71,901.60
  6. Step 6: Final answer
    x = 41,247.21

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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.