Home / 86,306.56-129,511.68-36,383.60

Finding the Fourth Proportional to 86,306.56, 129,511.68 and 36,383.60

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Solution

The fourth proportional to 86,306.56, 129,511.68 and 36,383.60 is: 54,597.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,306.56 : 129,511.68 = 36,383.60 : x
  2. Step 2: Convert to fraction form
    86,306.56/129,511.68 = 36,383.60/x
  3. Step 3: Cross multiply
    86,306.56x = 129,511.68 × 36,383.60
  4. Step 4: Simplify right side
    86,306.56x = 4,712,101,160.45
  5. Step 5: Solve for x
    x = 4,712,101,160.45/86,306.56
  6. Step 6: Final answer
    x = 54,597.25

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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.