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Finding the Fourth Proportional to 65,452.82, 90,304.14 and 39,946.42

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Solution

The fourth proportional to 65,452.82, 90,304.14 and 39,946.42 is: 55,113.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,452.82 : 90,304.14 = 39,946.42 : x
  2. Step 2: Convert to fraction form
    65,452.82/90,304.14 = 39,946.42/x
  3. Step 3: Cross multiply
    65,452.82x = 90,304.14 × 39,946.42
  4. Step 4: Simplify right side
    65,452.82x = 3,607,327,181.04
  5. Step 5: Solve for x
    x = 3,607,327,181.04/65,452.82
  6. Step 6: Final answer
    x = 55,113.39

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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.