Home / 75,411.18-104,009.13-55,260.54

Finding the Fourth Proportional to 75,411.18, 104,009.13 and 55,260.54

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Solution

The fourth proportional to 75,411.18, 104,009.13 and 55,260.54 is: 76,216.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,411.18 : 104,009.13 = 55,260.54 : x
  2. Step 2: Convert to fraction form
    75,411.18/104,009.13 = 55,260.54/x
  3. Step 3: Cross multiply
    75,411.18x = 104,009.13 × 55,260.54
  4. Step 4: Simplify right side
    75,411.18x = 5,747,600,688.73
  5. Step 5: Solve for x
    x = 5,747,600,688.73/75,411.18
  6. Step 6: Final answer
    x = 76,216.82

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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.