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Finding the Fourth Proportional to 75,495, 113,682.81 and 55,912.44

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Solution

The fourth proportional to 75,495, 113,682.81 and 55,912.44 is: 84,194.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,495 : 113,682.81 = 55,912.44 : x
  2. Step 2: Convert to fraction form
    75,495/113,682.81 = 55,912.44/x
  3. Step 3: Cross multiply
    75,495x = 113,682.81 × 55,912.44
  4. Step 4: Simplify right side
    75,495x = 6,356,283,293.16
  5. Step 5: Solve for x
    x = 6,356,283,293.16/75,495
  6. Step 6: Final answer
    x = 84,194.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.