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Finding the Fourth Proportional to 84,041.76, 115,974.69 and 45,800.54

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Solution

The fourth proportional to 84,041.76, 115,974.69 and 45,800.54 is: 63,203.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,041.76 : 115,974.69 = 45,800.54 : x
  2. Step 2: Convert to fraction form
    84,041.76/115,974.69 = 45,800.54/x
  3. Step 3: Cross multiply
    84,041.76x = 115,974.69 × 45,800.54
  4. Step 4: Simplify right side
    84,041.76x = 5,311,703,428.33
  5. Step 5: Solve for x
    x = 5,311,703,428.33/84,041.76
  6. Step 6: Final answer
    x = 63,203.14

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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.