Home / 87,683.44-121,010.56-53,691.76

Finding the Fourth Proportional to 87,683.44, 121,010.56 and 53,691.76

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Solution

The fourth proportional to 87,683.44, 121,010.56 and 53,691.76 is: 74,099.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,683.44 : 121,010.56 = 53,691.76 : x
  2. Step 2: Convert to fraction form
    87,683.44/121,010.56 = 53,691.76/x
  3. Step 3: Cross multiply
    87,683.44x = 121,010.56 × 53,691.76
  4. Step 4: Simplify right side
    87,683.44x = 6,497,269,944.99
  5. Step 5: Solve for x
    x = 6,497,269,944.99/87,683.44
  6. Step 6: Final answer
    x = 74,099.17

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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.