Home / 81,258.29-121,890.62-25,093.40

Finding the Fourth Proportional to 81,258.29, 121,890.62 and 25,093.40

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Solution

The fourth proportional to 81,258.29, 121,890.62 and 25,093.40 is: 37,641.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,258.29 : 121,890.62 = 25,093.40 : x
  2. Step 2: Convert to fraction form
    81,258.29/121,890.62 = 25,093.40/x
  3. Step 3: Cross multiply
    81,258.29x = 121,890.62 × 25,093.40
  4. Step 4: Simplify right side
    81,258.29x = 3,058,649,537.19
  5. Step 5: Solve for x
    x = 3,058,649,537.19/81,258.29
  6. Step 6: Final answer
    x = 37,641.08

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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.