Home / 71,468.10-98,622.66-39,636.30

Finding the Fourth Proportional to 71,468.10, 98,622.66 and 39,636.30

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Solution

The fourth proportional to 71,468.10, 98,622.66 and 39,636.30 is: 54,696.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,468.10 : 98,622.66 = 39,636.30 : x
  2. Step 2: Convert to fraction form
    71,468.10/98,622.66 = 39,636.30/x
  3. Step 3: Cross multiply
    71,468.10x = 98,622.66 × 39,636.30
  4. Step 4: Simplify right side
    71,468.10x = 3,909,037,338.56
  5. Step 5: Solve for x
    x = 3,909,037,338.56/71,468.10
  6. Step 6: Final answer
    x = 54,696.25

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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.