Home / 89,338.59-123,344.95-55,383.37

Finding the Fourth Proportional to 89,338.59, 123,344.95 and 55,383.37

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Solution

The fourth proportional to 89,338.59, 123,344.95 and 55,383.37 is: 76,464.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,338.59 : 123,344.95 = 55,383.37 : x
  2. Step 2: Convert to fraction form
    89,338.59/123,344.95 = 55,383.37/x
  3. Step 3: Cross multiply
    89,338.59x = 123,344.95 × 55,383.37
  4. Step 4: Simplify right side
    89,338.59x = 6,831,258,386.76
  5. Step 5: Solve for x
    x = 6,831,258,386.76/89,338.59
  6. Step 6: Final answer
    x = 76,464.81

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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.