Home / 81,688.73-112,717.19-51,058.19

Finding the Fourth Proportional to 81,688.73, 112,717.19 and 51,058.19

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Solution

The fourth proportional to 81,688.73, 112,717.19 and 51,058.19 is: 70,452.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,688.73 : 112,717.19 = 51,058.19 : x
  2. Step 2: Convert to fraction form
    81,688.73/112,717.19 = 51,058.19/x
  3. Step 3: Cross multiply
    81,688.73x = 112,717.19 × 51,058.19
  4. Step 4: Simplify right side
    81,688.73x = 5,755,136,112.72
  5. Step 5: Solve for x
    x = 5,755,136,112.72/81,688.73
  6. Step 6: Final answer
    x = 70,452.03

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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.