Home / 76,417.29-114,415.34-57,640.48

Finding the Fourth Proportional to 76,417.29, 114,415.34 and 57,640.48

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Solution

The fourth proportional to 76,417.29, 114,415.34 and 57,640.48 is: 86,301.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,417.29 : 114,415.34 = 57,640.48 : x
  2. Step 2: Convert to fraction form
    76,417.29/114,415.34 = 57,640.48/x
  3. Step 3: Cross multiply
    76,417.29x = 114,415.34 × 57,640.48
  4. Step 4: Simplify right side
    76,417.29x = 6,594,954,542.72
  5. Step 5: Solve for x
    x = 6,594,954,542.72/76,417.29
  6. Step 6: Final answer
    x = 86,301.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.