Home / 75,121.29-112,713.48-32,979.60

Finding the Fourth Proportional to 75,121.29, 112,713.48 and 32,979.60

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Solution

The fourth proportional to 75,121.29, 112,713.48 and 32,979.60 is: 49,483.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,121.29 : 112,713.48 = 32,979.60 : x
  2. Step 2: Convert to fraction form
    75,121.29/112,713.48 = 32,979.60/x
  3. Step 3: Cross multiply
    75,121.29x = 112,713.48 × 32,979.60
  4. Step 4: Simplify right side
    75,121.29x = 3,717,245,485.01
  5. Step 5: Solve for x
    x = 3,717,245,485.01/75,121.29
  6. Step 6: Final answer
    x = 49,483.25

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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.