Home / 75,657.76-104,360.40-54,403.36

Finding the Fourth Proportional to 75,657.76, 104,360.40 and 54,403.36

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Solution

The fourth proportional to 75,657.76, 104,360.40 and 54,403.36 is: 75,042.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,657.76 : 104,360.40 = 54,403.36 : x
  2. Step 2: Convert to fraction form
    75,657.76/104,360.40 = 54,403.36/x
  3. Step 3: Cross multiply
    75,657.76x = 104,360.40 × 54,403.36
  4. Step 4: Simplify right side
    75,657.76x = 5,677,556,410.94
  5. Step 5: Solve for x
    x = 5,677,556,410.94/75,657.76
  6. Step 6: Final answer
    x = 75,042.62

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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.