Home / 86,742.52-129,905.88-44,511.52

Finding the Fourth Proportional to 86,742.52, 129,905.88 and 44,511.52

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Solution

The fourth proportional to 86,742.52, 129,905.88 and 44,511.52 is: 66,660.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,742.52 : 129,905.88 = 44,511.52 : x
  2. Step 2: Convert to fraction form
    86,742.52/129,905.88 = 44,511.52/x
  3. Step 3: Cross multiply
    86,742.52x = 129,905.88 × 44,511.52
  4. Step 4: Simplify right side
    86,742.52x = 5,782,308,175.74
  5. Step 5: Solve for x
    x = 5,782,308,175.74/86,742.52
  6. Step 6: Final answer
    x = 66,660.60

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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.