Home / 81,420.08-122,124.26-25,258.73

Finding the Fourth Proportional to 81,420.08, 122,124.26 and 25,258.73

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Solution

The fourth proportional to 81,420.08, 122,124.26 and 25,258.73 is: 37,886.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,420.08 : 122,124.26 = 25,258.73 : x
  2. Step 2: Convert to fraction form
    81,420.08/122,124.26 = 25,258.73/x
  3. Step 3: Cross multiply
    81,420.08x = 122,124.26 × 25,258.73
  4. Step 4: Simplify right side
    81,420.08x = 3,084,703,162.32
  5. Step 5: Solve for x
    x = 3,084,703,162.32/81,420.08
  6. Step 6: Final answer
    x = 37,886.27

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1.5x scale

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.