Home / 82,781.76-124,162.38-23,622.60

Finding the Fourth Proportional to 82,781.76, 124,162.38 and 23,622.60

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Solution

The fourth proportional to 82,781.76, 124,162.38 and 23,622.60 is: 35,430.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,781.76 : 124,162.38 = 23,622.60 : x
  2. Step 2: Convert to fraction form
    82,781.76/124,162.38 = 23,622.60/x
  3. Step 3: Cross multiply
    82,781.76x = 124,162.38 × 23,622.60
  4. Step 4: Simplify right side
    82,781.76x = 2,933,038,237.79
  5. Step 5: Solve for x
    x = 2,933,038,237.79/82,781.76
  6. Step 6: Final answer
    x = 35,430.97

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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.