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Finding the Fourth Proportional to 71,372.53, 98,540.31 and 45,890.34

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Solution

The fourth proportional to 71,372.53, 98,540.31 and 45,890.34 is: 63,358.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,372.53 : 98,540.31 = 45,890.34 : x
  2. Step 2: Convert to fraction form
    71,372.53/98,540.31 = 45,890.34/x
  3. Step 3: Cross multiply
    71,372.53x = 98,540.31 × 45,890.34
  4. Step 4: Simplify right side
    71,372.53x = 4,522,048,329.61
  5. Step 5: Solve for x
    x = 4,522,048,329.61/71,372.53
  6. Step 6: Final answer
    x = 63,358.39

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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.