Home / 100,055.36-138,071.24-54,724.52

Finding the Fourth Proportional to 100,055.36, 138,071.24 and 54,724.52

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Solution

The fourth proportional to 100,055.36, 138,071.24 and 54,724.52 is: 75,517.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,055.36 : 138,071.24 = 54,724.52 : x
  2. Step 2: Convert to fraction form
    100,055.36/138,071.24 = 54,724.52/x
  3. Step 3: Cross multiply
    100,055.36x = 138,071.24 × 54,724.52
  4. Step 4: Simplify right side
    100,055.36x = 7,555,882,334.80
  5. Step 5: Solve for x
    x = 7,555,882,334.80/100,055.36
  6. Step 6: Final answer
    x = 75,517.02

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1.5x scale

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.