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Finding the Fourth Proportional to 71,171.76, 98,216.64 and 40,957.68

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Solution

The fourth proportional to 71,171.76, 98,216.64 and 40,957.68 is: 56,521.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,171.76 : 98,216.64 = 40,957.68 : x
  2. Step 2: Convert to fraction form
    71,171.76/98,216.64 = 40,957.68/x
  3. Step 3: Cross multiply
    71,171.76x = 98,216.64 × 40,957.68
  4. Step 4: Simplify right side
    71,171.76x = 4,022,725,711.80
  5. Step 5: Solve for x
    x = 4,022,725,711.80/71,171.76
  6. Step 6: Final answer
    x = 56,521.37

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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.