Home / 88,058.10-121,456.80-60,843.72

Finding the Fourth Proportional to 88,058.10, 121,456.80 and 60,843.72

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Solution

The fourth proportional to 88,058.10, 121,456.80 and 60,843.72 is: 83,920.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,058.10 : 121,456.80 = 60,843.72 : x
  2. Step 2: Convert to fraction form
    88,058.10/121,456.80 = 60,843.72/x
  3. Step 3: Cross multiply
    88,058.10x = 121,456.80 × 60,843.72
  4. Step 4: Simplify right side
    88,058.10x = 7,389,883,531.30
  5. Step 5: Solve for x
    x = 7,389,883,531.30/88,058.10
  6. Step 6: Final answer
    x = 83,920.54

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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.