Home / 81,683.22-112,694.76-51,035.52

Finding the Fourth Proportional to 81,683.22, 112,694.76 and 51,035.52

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Solution

The fourth proportional to 81,683.22, 112,694.76 and 51,035.52 is: 70,411.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,683.22 : 112,694.76 = 51,035.52 : x
  2. Step 2: Convert to fraction form
    81,683.22/112,694.76 = 51,035.52/x
  3. Step 3: Cross multiply
    81,683.22x = 112,694.76 × 51,035.52
  4. Step 4: Simplify right side
    81,683.22x = 5,751,435,677.88
  5. Step 5: Solve for x
    x = 5,751,435,677.88/81,683.22
  6. Step 6: Final answer
    x = 70,411.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.