Home / 86,412.10-129,630.30-27,241.60

Finding the Fourth Proportional to 86,412.10, 129,630.30 and 27,241.60

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Solution

The fourth proportional to 86,412.10, 129,630.30 and 27,241.60 is: 40,866.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,412.10 : 129,630.30 = 27,241.60 : x
  2. Step 2: Convert to fraction form
    86,412.10/129,630.30 = 27,241.60/x
  3. Step 3: Cross multiply
    86,412.10x = 129,630.30 × 27,241.60
  4. Step 4: Simplify right side
    86,412.10x = 3,531,336,780.48
  5. Step 5: Solve for x
    x = 3,531,336,780.48/86,412.10
  6. Step 6: Final answer
    x = 40,866.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.