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Finding the Fourth Proportional to 71,179.63, 98,232.20 and 40,964.29

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Solution

The fourth proportional to 71,179.63, 98,232.20 and 40,964.29 is: 56,533.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,179.63 : 98,232.20 = 40,964.29 : x
  2. Step 2: Convert to fraction form
    71,179.63/98,232.20 = 40,964.29/x
  3. Step 3: Cross multiply
    71,179.63x = 98,232.20 × 40,964.29
  4. Step 4: Simplify right side
    71,179.63x = 4,024,012,328.14
  5. Step 5: Solve for x
    x = 4,024,012,328.14/71,179.63
  6. Step 6: Final answer
    x = 56,533.20

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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.