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Finding the Fourth Proportional to 71,201.57, 98,168.86 and 45,662.88

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Solution

The fourth proportional to 71,201.57, 98,168.86 and 45,662.88 is: 62,957.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,201.57 : 98,168.86 = 45,662.88 : x
  2. Step 2: Convert to fraction form
    71,201.57/98,168.86 = 45,662.88/x
  3. Step 3: Cross multiply
    71,201.57x = 98,168.86 × 45,662.88
  4. Step 4: Simplify right side
    71,201.57x = 4,482,672,759.76
  5. Step 5: Solve for x
    x = 4,482,672,759.76/71,201.57
  6. Step 6: Final answer
    x = 62,957.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.