Home / 86,520.35-129,780.53-23,340.35

Finding the Fourth Proportional to 86,520.35, 129,780.53 and 23,340.35

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Solution

The fourth proportional to 86,520.35, 129,780.53 and 23,340.35 is: 35,010.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,520.35 : 129,780.53 = 23,340.35 : x
  2. Step 2: Convert to fraction form
    86,520.35/129,780.53 = 23,340.35/x
  3. Step 3: Cross multiply
    86,520.35x = 129,780.53 × 23,340.35
  4. Step 4: Simplify right side
    86,520.35x = 3,029,122,876.68
  5. Step 5: Solve for x
    x = 3,029,122,876.68/86,520.35
  6. Step 6: Final answer
    x = 35,010.53

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Similar ratio
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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.