Home / 80,867.36-121,258.80-25,448.48

Finding the Fourth Proportional to 80,867.36, 121,258.80 and 25,448.48

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Solution

The fourth proportional to 80,867.36, 121,258.80 and 25,448.48 is: 38,159.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,867.36 : 121,258.80 = 25,448.48 : x
  2. Step 2: Convert to fraction form
    80,867.36/121,258.80 = 25,448.48/x
  3. Step 3: Cross multiply
    80,867.36x = 121,258.80 × 25,448.48
  4. Step 4: Simplify right side
    80,867.36x = 3,085,852,146.62
  5. Step 5: Solve for x
    x = 3,085,852,146.62/80,867.36
  6. Step 6: Final answer
    x = 38,159.43

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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.