Home / 50,918.03-70,335.39-39,128.75

Finding the Fourth Proportional to 50,918.03, 70,335.39 and 39,128.75

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Solution

The fourth proportional to 50,918.03, 70,335.39 and 39,128.75 is: 54,050.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,918.03 : 70,335.39 = 39,128.75 : x
  2. Step 2: Convert to fraction form
    50,918.03/70,335.39 = 39,128.75/x
  3. Step 3: Cross multiply
    50,918.03x = 70,335.39 × 39,128.75
  4. Step 4: Simplify right side
    50,918.03x = 2,752,135,891.46
  5. Step 5: Solve for x
    x = 2,752,135,891.46/50,918.03
  6. Step 6: Final answer
    x = 54,050.32

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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.