Home / 86,244.67-129,388.53-30,085.58

Finding the Fourth Proportional to 86,244.67, 129,388.53 and 30,085.58

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Solution

The fourth proportional to 86,244.67, 129,388.53 and 30,085.58 is: 45,135.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,244.67 : 129,388.53 = 30,085.58 : x
  2. Step 2: Convert to fraction form
    86,244.67/129,388.53 = 30,085.58/x
  3. Step 3: Cross multiply
    86,244.67x = 129,388.53 × 30,085.58
  4. Step 4: Simplify right side
    86,244.67x = 3,892,728,970.40
  5. Step 5: Solve for x
    x = 3,892,728,970.40/86,244.67
  6. Step 6: Final answer
    x = 45,135.88

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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.