Home / 66,058.40-91,228.17-61,826.56

Finding the Fourth Proportional to 66,058.40, 91,228.17 and 61,826.56

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Solution

The fourth proportional to 66,058.40, 91,228.17 and 61,826.56 is: 85,383.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,058.40 : 91,228.17 = 61,826.56 : x
  2. Step 2: Convert to fraction form
    66,058.40/91,228.17 = 61,826.56/x
  3. Step 3: Cross multiply
    66,058.40x = 91,228.17 × 61,826.56
  4. Step 4: Simplify right side
    66,058.40x = 5,640,323,929.97
  5. Step 5: Solve for x
    x = 5,640,323,929.97/66,058.40
  6. Step 6: Final answer
    x = 85,383.90

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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.