Home / 82,881.76-124,293.36-26,719.60

Finding the Fourth Proportional to 82,881.76, 124,293.36 and 26,719.60

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Solution

The fourth proportional to 82,881.76, 124,293.36 and 26,719.60 is: 40,069.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,881.76 : 124,293.36 = 26,719.60 : x
  2. Step 2: Convert to fraction form
    82,881.76/124,293.36 = 26,719.60/x
  3. Step 3: Cross multiply
    82,881.76x = 124,293.36 × 26,719.60
  4. Step 4: Simplify right side
    82,881.76x = 3,321,068,861.86
  5. Step 5: Solve for x
    x = 3,321,068,861.86/82,881.76
  6. Step 6: Final answer
    x = 40,069.96

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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.